CN103865042B - Containing the multipolymer and its preparation method and application of two thiophene pyrroles and benzo two (selenole) unit - Google Patents
Containing the multipolymer and its preparation method and application of two thiophene pyrroles and benzo two (selenole) unit Download PDFInfo
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- 0 C*=C(C(c(c1n[*-]nc1c(*)c1)c1I)=C(C=C1*)I)C1=IC Chemical compound C*=C(C(c(c1n[*-]nc1c(*)c1)c1I)=C(C=C1*)I)C1=IC 0.000 description 5
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Abstract
The present invention relates to a kind of multipolymer containing two thiophene pyrroles and benzo two (selenole) unit, structural formula is as follows:
wherein, n is the integer of 1 ~ 100; R
1, R
2and R
3for C
1~ C
20alkyl.This multipolymer has the characteristics such as light abstraction width is wide, carrier mobility is high, good stability, film forming properties are good, can application in multipolymer solar cell device, organic electroluminescence device, organic field effect tube, organic optical storage and organic laser.In addition, the present invention also provides a kind of preparation method containing the multipolymer of two thiophene pyrroles and benzo two (selenole) unit, the method mild condition, and be easy to control, the productive rate of product is high.
Description
Technical field
The present invention relates to solar cell material technical field, particularly relate to one and contain multipolymer of two thiophene pyrroles and benzo two (selenole) unit and its preparation method and application.
Background technology
Utilize cheap material prepares low cost, dynamical solar cell is photovoltaic art always study hotspot and difficult point.Although traditional silicon solar cell has higher usefulness, its complex manufacturing, cost are high, limit it and apply further.In order to reduce the production cost of solar cell, expand its range of application, people are finding novel solar cell material always.
Multipolymer solar cell because low in raw material price, quality are light, flexible, production technique is simple, the advantage such as can to prepare and receive much concern by large area flexible.But the photoelectric transformation efficiency of multipolymer solar cell is more much lower than silicon solar cell, if multipolymer solar cell photoelectric efficiency of conversion can be brought up to the level close to commodity silicon solar cell, its market outlook will be very huge.
People have dropped into large quantity research in multipolymer solar cell, research shows that one of following facing challenges of multipolymer solar cell is exactly the copolymer material of synthesizing new, and copolymer material needs to possess following characteristics: (a) good solubility, be conducive to solvent processing, realize suitability for industrialized production; B () has wide and strong absorption to whole sunlight spectrum; C carrier mobility that () is high, is conducive to carrier transport.Wherein, how to widen the light abstraction width of copolymer material, make its light abstraction width farthest cover whole sunlight spectrum most important to the photoelectric transformation efficiency improving multipolymer solar cell.
Summary of the invention
Based on this, be necessary the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit providing a kind of light abstraction width wide.
A kind of multipolymer containing two thiophene pyrroles and benzo two (selenole) unit, has following structural formula:
Wherein, n is the integer of 1 ~ 100;
R
1, R
2and R
3for C
1~ C
20alkyl.
The above-mentioned multipolymer containing two thiophene pyrroles and benzo two (selenole) unit has lot of advantages, first, donor monomer two thiophene pyrrole of electron rich and electron deficiency by body unit benzo two (selenole), form donor-receiver structure, there is the interaction of very strong " pushing away-La electronics ", improve the stability of multipolymer on the one hand; Reduce the energy gap of multipolymer on the one hand, its absorption band can be made to move to infrared and near infrared low energy wave band, widen the light abstraction width of the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit, but also the mobility of current carrier can be improved.Secondly, selenole unit has excellent reduction reversibility, and the radius of selenium atom in selenole unit is comparatively large, the molecule that can strengthen between copolymer chain is overlapping, is easy to form strong state of aggregation and make multipolymer have higher carrier mobility; Selenole easily improves solvability and the molecular weight of multipolymer by introducing alkyl simultaneously, is conducive to film forming processing.And two thiophene pyrrole there are three five-membered ring structures, there is narrow band gap, strong conjugated nature, moderate band gap, wider spectral response, good thermostability and film forming properties.Therefore, the above-mentioned multipolymer containing two thiophene pyrroles and benzo two (selenole) unit has the characteristics such as light abstraction width is wide, carrier mobility is high, good stability, film forming properties are good.
A kind of preparation method containing the multipolymer of two thiophene pyrroles and benzo two (selenole) unit, comprises the steps:
There is provided compd A and compd B, the structural formula of compd A is:
The structural formula of compd B is:
Wherein, R
1, R
2and R
3for C
1~ C
20alkyl;
Under shielding gas atmosphere; be that the ratio of 1:1.5 ~ 1.5:1 carries out Stille coupled reaction under catalyzer and organic solvent existent condition according to mol ratio by compd A and compd B; wherein; temperature of reaction is 50 ~ 120 DEG C; reaction times is 6 ~ 100 hours; the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit with following structural formula is obtained after separation and purification
Wherein, n is the integer of 1 ~ 100.
Wherein in an embodiment, described catalyzer is Pd
2(dba)
3, Pd (PPh
3)
4or Pd (PPh
3)
2cl
2, the molar weight of described catalyzer is 0.05% ~ 20% of the molar weight of described compd B; Described organic solvent is tetrahydrofuran (THF), glycol dimethyl ether, benzene or toluene;
The step of described separation and purification is:
Toluene is added and deionized water extracts in reaction system, get organic phase, at least part of solvent of described organic phase is removed by the method for underpressure distillation, again described organic phase is added dropwise to precipitating in anhydrous methanol, suction filtration, pressed powder is obtained after oven dry, again described pressed powder chloroform is dissolved, with neutral alumina chromatography column removing catalyzer, finally remove chloroform, methyl alcohol sedimentation, suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days, methyl alcohol sedimentation, suction filtration, be pumped through under vacuum pump and obtain the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit after purifying night.
Wherein in an embodiment, described compd A is adopted and is prepared with the following method:
There is provided Compound C, the structural formula of Compound C is:
Under shielding gas atmosphere; Compound C and n-Butyl Lithium are reacted 1 ~ 2 hour in tetrahydrofuran (THF) according to the ratio that mol ratio is 1:2 under the condition of-78 DEG C; then add tributyltin chloride under the condition of-78 DEG C, continue reaction 1 hour; then room temperature is warming up to; react 6 hours under room temperature; obtain described compd A, wherein, the ratio of the mol ratio of tributyltin chloride and Compound C is 2:1.
Wherein in an embodiment, described compd B is adopted and is prepared with the following method:
There is provided Compound D and compd E, the structural formula of Compound D is:
The structural formula of compd E is:
Under shielding gas atmosphere, by Compound D, compd E and Bu
3n is that 1:2:1 ratio is at Pd (OAc) according to mol ratio
2carry out ring closure reaction with under DMF existent condition, obtain described compd B, wherein, temperature of reaction is 130 DEG C, and the reaction times is 4 hours, Pd (OAc)
2molar weight be 10% of the molar weight of Compound D.
Wherein in an embodiment, described Compound D is adopted and is prepared with the following method:
There is provided compound F 17-hydroxy-corticosterone, the structural formula of compound F 17-hydroxy-corticosterone is:
Under shielding gas atmosphere, compound F 17-hydroxy-corticosterone is joined in ethanol, obtain mixed solution, under the condition of backflow, in described mixed solution, drip SeO
2the aqueous solution, and back flow reaction 2 hours, obtains described Compound D.
Wherein in an embodiment, described compound F 17-hydroxy-corticosterone is adopted and is prepared with the following method:
There is provided compound G, the structural formula of compound G is:
Under shielding gas atmosphere, compound G is joined in ethanol, obtains suspension, then, at 0 DEG C, in described suspension, drip sodium borohydride, then react 20 hours in stirred at ambient temperature, obtain described compound F 17-hydroxy-corticosterone.
Wherein in an embodiment, described compound G adopts and prepares with the following method:
There is provided compound H, the structural formula of compound H is:
Compound H, copper powder and DMF are mixed, are heated to 120 DEG C of reactions after 3 hours, are cooled to room temperature, add toluene, stir 30 minutes, obtain Compound I,
The structural formula of Compound I is:
By Compound I, tetrahydrofuran (THF) and SnCl
2mixing, heating reflux reaction 10 hours, after cooling, with sodium hydroxide solution adjust pH to 8.0, anhydrous diethyl ether extracts, rotary evaporation gained organic layer, obtain solid crude product, add hydrochloric acid, agitation and dropping sodium nitrite solution in 30 minutes, temperature controls below 5 DEG C, after dropwising, reacts 30 minutes, then reacted solution is added dropwise in liquor kalii iodide, vigorous stirring, reacts 12 hours, stopped reaction, with sodium hydroxide solution adjust pH to 7.0, obtains described compound G.
Wherein in an embodiment, described compound H is adopted and is prepared with the following method:
There is provided compound J, the structural formula of compound J is:
Mixed with thionyl chloride by compound J, stir and slowly drip pyridine, heating reflux reaction 24 hours, obtains compound K,
The structural formula of compound K is:
The Hydrogen bromide being 40% by compound K and mass concentration mixes, and after being warming up to 127 DEG C, in 30 minutes, slowly drips bromine, and then back flow reaction 4 hours, obtains described compound H.
The reaction conditions of the Stille reaction in above-mentioned preparation method is gentle, and be easy to control, the productive rate of product is high; The route of synthesis benzo two (selenole) is fairly simple, easily improves solvability and the molecular weight of multipolymer by introducing alkyl, is conducive to film forming processing; The multipolymer containing two thiophene pyrroles and benzo two (selenole) unit prepared has the characteristics such as light abstraction width is wide, carrier mobility is high, good stability, film forming properties are good, can apply in multipolymer solar cell device, organic electroluminescence device, organic field effect tube, organic optical storage and organic laser.
Accompanying drawing explanation
Fig. 1 is the schema containing the preparation method of the multipolymer of two thiophene pyrroles and benzo two (selenole) unit of an embodiment;
Fig. 2 is the structural representation of the multipolymer solar cell device of an embodiment;
Fig. 3 is the structural representation of the organic electroluminescence device of an embodiment.
Embodiment
Below in conjunction with drawings and the specific embodiments, multipolymer containing two thiophene pyrroles and benzo two (selenole) unit and its preparation method and application is further detailed.
The copolymer structure formula containing two thiophene pyrroles and benzo two (selenole) unit of one embodiment is as follows:
Wherein, n is the integer of 1 ~ 100;
R
1, R
2and R
3for C
1~ C
20alkyl.
Benzo two (selenole) unit belongs to short of electricity subtype aromatic cycle compound, there is strong electron-withdrawing power, structure is simple, symmetrical, electron delocalization performance is good, there is two dimensional structure, be a kind ofly excellent by body unit, there is good electronic transport property, the energy gap of material can also be regulated simultaneously.And benzo two (selenole) unit also has excellent reduction reversibility, with the work content value of the metallic cathode such as magnesium, aluminium closely.
Thiophene is five-membered ring structure, has moderate band gap, wider spectral response, good thermostability and film forming properties.Thiophene defines σ *-π * conjugation, makes the minimum non-occupied orbital (lowestunocccupiedmolecularorbital, LUMO) of thiophene molecule lower, has good electron affinity and electronic mobility simultaneously.Having three five-membered ring structures in the structure of two thiophene pyrroles, have narrow band gap and strong conjugated nature, is a kind of excellent donor monomer, at present in the photoelectric material such as widespread use and Organic Light Emitting Diode, organic solar batteries, field-effect transistor.
The above-mentioned multipolymer containing two thiophene pyrroles and benzo two (selenole) unit has lot of advantages, first, donor monomer two thiophene pyrrole of electron rich and electron deficiency by body unit benzo two (selenole), form donor-receiver structure, there is the interaction of very strong " pushing away-La electronics ", improve the stability of multipolymer on the one hand; Reduce the energy gap of multipolymer on the one hand, its absorption band can be made to move to infrared and near infrared low energy wave band, widen the light abstraction width of the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit, but also the mobility of current carrier can be improved.Secondly, selenole unit has excellent reduction reversibility, and the radius of selenium atom in selenole unit is comparatively large, the molecule that can strengthen between copolymer chain is overlapping, is easy to form strong state of aggregation and make multipolymer have higher carrier mobility; Selenole easily improves solvability and the molecular weight of multipolymer by introducing alkyl simultaneously, is conducive to film forming processing.And two thiophene pyrrole there are three five-membered ring structures, there is narrow band gap, strong conjugated nature, moderate band gap, wider spectral response, good thermostability and film forming properties.Therefore, the above-mentioned multipolymer containing two thiophene pyrroles and benzo two (selenole) unit has the characteristics such as light abstraction width is wide, carrier mobility is high, good stability, film forming properties are good.
In addition, present embodiment additionally provides a kind of preparation method containing the multipolymer of two thiophene pyrroles and benzo two (selenole) unit, as shown in Figure 1, comprises the steps:
Step S110, provides compd A and compd B.The structural formula of compd A is:
The structural formula of compd B is:
Wherein, R
1, R
2and R
3for C
1~ C
20alkyl.
Step S120; under shielding gas atmosphere; be that the ratio of 1:1.5 ~ 1.5:1 carries out Stille coupled reaction under catalyzer and organic solvent existent condition according to mol ratio by compd A and compd B; wherein; temperature of reaction is 50 ~ 120 DEG C; reaction times is 6 ~ 100 hours, obtains the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit with following structural formula after separation and purification
Wherein, n is the integer of 1 ~ 100.
In the present embodiment, shielding gas atmosphere comprises nitrogen, argon gas etc.
Catalyzer is organic palladium, as Pd
2(dba)
3, Pd (PPh
3)
4or Pd (PPh
3)
2cl
2, be preferably Pd (PPh
3)
2cl
2.Be appreciated that catalyzer also can be organic palladium and organophosphorus ligand (e.g., P (o-Tol)
3or tricyclohexyl phosphine) mixture, e.g., that mol ratio 1:2 ~ 1:20 is Pd
2(dba)
3with P (o-Tol)
3mixture.
The consumption of catalyzer is 0.05% ~ 20% of the molar weight of compd B.
Organic solvent is tetrahydrofuran (THF), glycol dimethyl ether, benzene or toluene, and the amount of solvent is enough.
In the present embodiment, purification procedures is in the step s 120:
Toluene is added and deionized water extracts in reaction system, get organic phase, with at least part of solvent of the method removing organic phase of underpressure distillation, again organic phase is added dropwise to precipitating in anhydrous methanol, suction filtration, pressed powder is obtained after oven dry, again pressed powder chloroform is dissolved, with neutral alumina chromatography column removing catalyzer, finally remove chloroform, methyl alcohol sedimentation, suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days, methyl alcohol sedimentation, suction filtration, be pumped through under vacuum pump and obtain the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit after purifying night.
In step s 110, compd A can be adopted and prepare with the following method:
Step S111, provides Compound C, and the structural formula of Compound C is:
Wherein, R
3for C
1~ C
20alkyl.
Step S112, under shielding gas atmosphere, reacts Compound C and n-Butyl Lithium 1 ~ 2 hour according to the ratio that mol ratio is 1:2, then adds tributyltin chloride (SnBu in tetrahydrofuran (THF) under the condition of-78 DEG C
3cl) under the condition of-78 DEG C, continue reaction 1 hour, be then warming up to room temperature, react 6 hours under room temperature, obtain compd A, wherein, SnBu
3the ratio of the mol ratio of Cl and Compound C is 2:1.
The reaction process of this step is as follows:
In step s 110, compd B can be adopted and prepare with the following method:
Step S211, provides Compound D and compd E, and the structural formula of Compound D is:
The structural formula of compd E is:
Wherein, R
1and R
2for C
1~ C
20alkyl.
Step S212, under shielding gas atmosphere, by Compound D, compd E and Bu
3n is that 1:2:1 ratio is at Pd (OAc) according to mol ratio
2carry out ring closure reaction with under DMF existent condition, obtain compd B, wherein, temperature of reaction is 130 DEG C, and the reaction times is 4 hours, Pd (OAc)
2molar weight be 10% of the molar weight of Compound D.
The reaction process of this step is as follows:
In step S211, Compound D can be adopted and be prepared with the following method:
Step S221, provides compound F 17-hydroxy-corticosterone, and the structural formula of compound F 17-hydroxy-corticosterone is:
Step S222, under shielding gas atmosphere, joins compound F 17-hydroxy-corticosterone in ethanol, obtains mixed solution, under the condition of backflow, in mixed solution, drips SeO
2the aqueous solution, and back flow reaction 2 hours, obtains Compound D.
The reaction process of this step is as follows:
In step S221, compound F 17-hydroxy-corticosterone can be adopted and prepare with the following method:
Step S231, provides compound G, and the structural formula of compound G is:
Step S232, under shielding gas atmosphere, joins in ethanol by compound G, obtains suspension, then, at 0 DEG C, in suspension, drips sodium borohydride, then reacts 20 hours in stirred at ambient temperature, obtain compound F 17-hydroxy-corticosterone.
The reaction process of this step is as follows:
In step S231, compound G can adopt and prepare with the following method:
Step S241, provides compound H, and the structural formula of compound H is:
Step S242, mixes compound H, copper powder and DMF, and be heated to 120 DEG C of reactions after 3 hours, be cooled to room temperature, add toluene, stir 30 minutes, obtain Compound I, the structural formula of Compound I is:
The reaction process of this step is as follows:
Step S243, by Compound I, tetrahydrofuran (THF) and SnCl
2mixing, heating reflux reaction 10 hours, after cooling, with sodium hydroxide solution adjust pH to 8.0, anhydrous diethyl ether extracts, rotary evaporation gained organic layer, obtain solid crude product, add hydrochloric acid, agitation and dropping sodium nitrite solution in 30 minutes, temperature controls below 5 DEG C, after dropwising, reacts 30 minutes, then reacted solution is added dropwise in liquor kalii iodide, vigorous stirring, reacts 12 hours, stopped reaction, with sodium hydroxide solution adjust pH to 7.0, obtains compound G.
The reaction process of this step is as follows:
In step S241, compound H can be adopted and prepare with the following method:
Step S251, provides compound J, and the structural formula of compound J is:
Step S252, mixes compound J with thionyl chloride, and stir and slowly drip pyridine, heating reflux reaction 24 hours, obtains compound K, and the structural formula of compound K is:
The reaction process of this step is as follows:
Step S253, the Hydrogen bromide being 40% by compound K and mass concentration mixes, and after being warming up to 127 DEG C, in 30 minutes, slowly drips bromine, and then back flow reaction 4 hours, obtains compound H.
The reaction process of this step is as follows:
The reaction conditions of the Stille reaction in above-mentioned preparation method is gentle, and be easy to control, the productive rate of product is high; The route of synthesis benzo two (selenole) is fairly simple, easily improves solvability and the molecular weight of multipolymer by introducing alkyl, is conducive to film forming processing; The multipolymer containing two thiophene pyrroles and benzo two (selenole) unit prepared has the characteristics such as light abstraction width is wide, carrier mobility is high, good stability, film forming properties are good, can apply in multipolymer solar cell device, organic electroluminescence device, organic field effect tube, organic optical storage and organic laser.
Below in conjunction with specific embodiment, the multipolymer and its preparation method and application containing two thiophene pyrroles and benzo two (selenole) unit is described.
Embodiment 1
P1: poly-4-dodecyl two thieno-[3,2-b:4,5-b '] pyrroles-6,7-bis-(3,7-dimethyl) octyl group-benzo [2,1-e:3,4-e] two (selenole) }, there is following structural formula:
The preparation process of above-mentioned copolymer p 1 is as follows:
Step 1, prepare compound 5-nitro-2,1,3 diazosulfide
In there-necked flask, add 0.15mol2-amino-5-N-methyl-p-nitroaniline and 100mL thionyl chloride, and in there-necked flask, slowly drip 2mL pyridine, then heating reflux reaction 24 hours under the condition stirred; Reaction solution is heated to after 80 DEG C of rotations steam excessive thionyl chloride, will stirs in the large water gaging of reaction product impouring being cooled to room temperature; Filter, obtain solid matter, and the solid matter after vacuum-drying washing, namely obtain product 5-nitro-2,1,3 diazosulfide 21.7g, productive rate 80%.
Step 2, prepare compound 4,7-bis-bromo-5-nitro-2,1,3 diazosulfide
In there-necked flask, add 60mmol5-nitro-2,1,3 diazosulfide and 15mL mass concentration is the Hydrogen bromide of 40%, obtain mixed solution; After mixed solution being warming up to 127 DEG C, in 30 minutes, slowly drip 11.3mL bromine, then back flow reaction 4 hours; Heat filtering reaction solution, refilters after the filtrate obtained being cooled, obtains solid matter, also dry with a large amount of water washing solid matters, with Glacial acetic acid recrystallization once, then with Gossypol recrystallized from chloroform once, obtain the bromo-5-nitro-2 of product 4,7-bis-, 1,3 diazosulfide 10.2g, productive rate is 50%.
Step 3, preparation 4,4 '-two bromo-6,6 '-dinitrobenzene-Lian 2,1,3 diazosulfides
In there-necked flask, add 30mmol4,7-bis-bromo-5-nitro-2,1,3 diazosulfide, 9.5g copper powder and 90mLN, dinethylformamide (DMF), obtains mixed solution; Mixed solution is heated to 120 DEG C, and reacts 3 hours at 120 DEG C; In the reaction solution being cooled to room temperature, add 90mL toluene, and stir 30 minutes; Then filter, respectively with the filtrate that saturated aqueous common salt and water washing obtain, and merge organic layer; Anhydrous magnesium sulfate drying organic layer; Filter, collect filtrate; By the method for rotary evaporation, the solvent in filtrate is removed, obtain solid matter; Solid matter dehydrated alcohol recrystallization, namely obtains product 4, and 4 '-two bromo-6,6 '-dinitrobenzene-Lian 2,1,3 diazosulfide 4.7g, productive rate is 30.2%.
Step 4, preparation 4,4 '-two bromo-6,6 '-two iodo-2,1,3 diazosulfides
In there-necked flask, add 20mmol4,4 '-two bromo-6,6 '-dinitrobenzene-Lian 2,1, the tetrahydrofuran (THF) (THF) of 3 diazosulfides, 300mL drying and 200mmolSnCl
2, obtain mixed solution; Mixed solution is heated to 100 DEG C, and heating reflux reaction 10 hours; After question response liquid cooling but, with sodium hydroxide solution adjust pH to 8.0; Then with anhydrous diethyl ether extraction, rotary evaporation gained organic layer, obtains solid crude product; The solid crude product obtained is put in there-necked flask, adds the hydrochloric acid (21.7mmol) of 58mL, and in 30 minutes agitation and dropping 20mL sodium nitrite solution (37.7mmol), temperature controls below 5 DEG C, and solution is in yellow; After dropwising, react 30 minutes.Then reacted solution is added dropwise in liquor kalii iodide (62g potassiumiodide and 100mL water), vigorous stirring, reacts 12 hours; After reaction stops, with sodium hydroxide solution adjust pH to 7.0; Then with anhydrous diethyl ether extraction, and collected organic layer; Organic layer through washing after, with anhydrous magnesium sulfate drying; Filter, collect filtrate; By the method for rotary evaporation, the solvent in filtrate is removed, obtain crude product; Crude product is carried out silica gel column chromatography separation, and will be separated the material recrystallizing methanol obtained, namely obtain 4,4 '-two bromo-6,6 '-two iodo-2,1,3 diazosulfide 4.1g, productive rate is 30%.
Step 5, preparation 4,4 '-two bromo-6,6 '-two iodo-di-(1,2-phenylenediamine)
In there-necked flask, add 0.01mol4,4 '-two bromo-6,6 '-two iodo-2,1,3 diazosulfides and 200ml ethanol, form suspension; Then, at 0 DEG C, in suspension, drip 0.37mol sodium borohydride, then react 20 hours in stirred at ambient temperature; With anhydrous diethyl ether extractive reaction liquid, and collected organic layer; Organic layer through washing after, with anhydrous magnesium sulfate drying; Filter, collect filtrate; By the method for rotary evaporation, the solvent in filtrate is removed, namely obtain product 4,4 '-two bromo-6,6 '-two iodo-di-(1,2-phenylenediamine) 5.49g, productive rate 88%.
Step 6, preparation 4,4 '-two bromo-6,6 '-two iodo-2,1,3-selenoles
In there-necked flask, add 5mmol4,4 '-two bromo-6,6 '-two iodo-di-(1,2-phenylenediamine) and 60ml ethanol, obtain mixed solution; Under the condition of backflow, in mixed solution, drip 22ml containing 10.5mmolSeO
2hydrothermal solution, then back flow reaction 2 hours; Question response liquid cooled and filtered, namely obtains product 4,4 '-two bromo-6,6 '-two iodo-2,1,3-selenole 3.48g, productive rate 90%.
Step 7, bromo-6,7-bis-(3,7-dimethyl) octyl group-benzo [2,1-e:3, the 4-e] two (selenole) of preparation 4,9-bis-
5mmol4 is added, 4 '-two bromo-6,6 '-two iodo-2,1 in there-necked flask, 3 selenoles, 10mmol2, (synthetic method is with reference to Chem.Commun. for 6,13,17-tetramethyl--9-octadecyne, 2011,47,8850-8852) and 25mlDMF, obtain mixed solution; Under the condition stirred, in mixed solution, pass into nitrogen 20min, then add 10mmolBu
3n and 0.5mmolPd (OAc)
2, be warming up to 130 DEG C, and react 4 hours at 130 DEG C; After question response liquid cooling but, wash with water, dichloromethane extraction, obtain organic layer; Anhydrous sodium sulfate drying organic layer; Filter, collect filtrate; By the method for underpressure distillation, the solvent in filtrate is removed, obtain crude product; Crude product is carried out silica gel column chromatography separation, namely obtains product 4,9-bis-bromo-6,7-bis-(3,7-dimethyl octyl group)-benzo [2,1-e:3,4-e] two (selenole) 2.48g, productive rate 60%.
Step 8, preparation 4-dodecyl-2,6-bis-(tributyl tin)-two thieno-[3,2-b:4,5-b '] pyrroles
Under the protection of nitrogen, in there-necked flask, add 0.01mol4-dodecyl-2,6-dibromo two thieno-[3,2-b:4,5-b '] pyrroles and 51ml tetrahydrofuran solvent, obtain mixed solution; Slowly in mixed solution, 8.6mL n-Butyl Lithium (0.02mol) is injected with syringe under-78 DEG C of conditions, and stirring reaction 2 hours; Then under-78 DEG C of conditions, inject 5.6mL tributyltin chloride (0.02mol) again with syringe in mixed solution, stirring reaction continues stirring reaction 6 hours under being warming up to room temperature after 1 hour; Add 30ml saturated sodium-chloride water solution termination reaction, with anhydrous diethyl ether extraction, obtain organic layer; Anhydrous sodium sulfate drying organic layer, after filtering by filtrate collection and rotary evaporation except desolventizing, obtain crude product; Crude product is carried out neutral alumina column chromatography for separation, obtains product, productive rate 65%.
Step 9, preparation are gathered 4-dodecyl two thieno-[3,2-b:4,5-b '] pyrroles-6,7-bis-(3,7-dimethyl) octyl group-benzo [2,1-e:3,4-e] two (selenole) }
Under nitrogen protection, 0.2mmol4-dodecyl-2 is added in reaction flask, 6-bis-(tributyl tin)-two thieno-[3,2-b:4,5-b '] pyrroles, 0.2mmol4,9-bis-bromo-6,7-bis-(3,7-dimethyl) octyl group-benzo [2,1-e:3,4-e] two (selenoles) and 40ml tetrahydrofuran solvent, obtain mixed solution; Vacuumize the oxygen in removing mixed solution and be filled with nitrogen; Then 7.1 × 10 are added
-3mmolPd (PPh
3)
2cl
2, and be heated to 90 DEG C of reaction 72h; After reaction, deionized water is added and toluene extracts in the reaction flask of product, get organic phase, by the method for underpressure distillation by multipolymer/toluene solution evaporate to dryness to about about 5ml, be added dropwise in 400ml dehydrated alcohol and constantly stirred, there is solid precipitation to separate out, after suction filtration, oven dry, obtain pressed powder.Again pressed powder chloroform is dissolved, cross chromatography column with neutral alumina, decompression removing organic solvent, methyl alcohol sedimentation.Suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days.Methyl alcohol sedimentation, suction filtration.Be pumped through under vacuum pump and obtain product night.
Copolymer p 1 after purifying is carried out GPC test, number-average molecular weight Mn ≈ 50016, n=48, and multipolymer monodispersity is 2.2.
Embodiment 2
P2: poly-4-methyl two thieno-[3,2-b:4,5-b '] pyrroles-6,7-bis-(3,7-dimethyl) octyl group-benzo [2,1-e:3,4-e] two (selenole) }, there is following structural formula:
The preparation process of above-mentioned copolymer p 2 is as follows:
Step 1-7 is with the step 1-7 of embodiment 1.
Step 8, preparation 4-methyl-2,6-bis-(tributyl tin)-two thieno-[3,2-b:4,5-b '] pyrroles
Under the protection of nitrogen, in there-necked flask, add 0.01mol4-methyl-2,6-dibromo two thieno-[3,2-b:4,5-b '] pyrroles and 40ml tetrahydrofuran solvent, obtain mixed solution; Under-78 DEG C of conditions, slowly in mixed solution, inject 8.6mL n-Butyl Lithium (0.02mol) with syringe, continue stirring reaction 1.5 hours; Then under-78 DEG C of conditions, inject 5.6mL tributyltin chloride (0.02mol) again with syringe in mixed solution, stirring reaction continues stirring reaction 6 hours under being warming up to room temperature after 1 hour; Add 30ml saturated sodium-chloride water solution termination reaction, with anhydrous diethyl ether extraction, obtain organic layer, anhydrous sodium sulfate drying organic layer, after filtering by filtrate collection and rotary evaporation except desolventizing, obtain crude product; Crude product is carried out neutral alumina column chromatography for separation, obtains product, productive rate 60%.
Step 9, preparation are gathered 4-methyl two thieno-[3,2-b:4,5-b '] pyrroles-6,7-bis-(3,7-dimethyl) octyl group-benzo [2,1-e:3,4-e] two (selenole) }
Under nitrogen protection, in reaction flask, add 0.2mmol4,4-dimethyl-2,6-bis-(tributyl tin)-thiophene coughs up also [2,1-b; 3,4-b '] two thiophene, bromo-6,7-bis-(3,7-dimethyl) octyl group-benzo [2,1-e:3,4-e] two (selenole) and the 40ml tetrahydrofuran solvents of 0.2mmol4,9-bis-, obtain mixed solution; Vacuumize the oxygen in removing mixed solution and be filled with nitrogen, then adding 5.5 × 10
-3mmolPd
2(dba)
3, and be heated to 90 DEG C of reaction 72h; After reaction, deionized water is added and toluene extracts in the reaction flask of product, get organic phase, by the method for underpressure distillation by multipolymer/toluene solution evaporate to dryness to about about 5ml, be added dropwise in 400ml dehydrated alcohol and constantly stirred, there is solid precipitation to separate out, after suction filtration, oven dry, obtain pressed powder.Again pressed powder chloroform is dissolved, cross chromatography column with neutral alumina, decompression removing organic solvent, methyl alcohol sedimentation.Suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days.Methyl alcohol sedimentation, suction filtration.Be pumped through under vacuum pump and obtain product night.
Copolymer p 2 after purifying is carried out GPC test, number-average molecular weight Mn ≈ 16872, n=19, and multipolymer monodispersity is 2.5.
Embodiment 3
P3: poly-4-NSC 62789 base two thieno-[3,2-b:4,5-b '] pyrroles-6-methyl-7-ethyl benzo [2,1-e:3,4-e] two (selenole) }, there is following structural formula:
The preparation process of above-mentioned copolymer p 3 is as follows:
Step 1-6 is with the step 1-6 of embodiment 1.
Step 7, preparation 4,9-bis-bromo-6-methyl-7-ethyl benzo [2,1-e:3,4-e] two (selenole)
In there-necked flask, add 10mmol4,4 '-two bromo-6,6 '-two iodo-2,1,3 selenoles, 20mmol2-pentyne (synthetic method is with reference to Chem.Commun., 2011,47,8850-8852) and 50mlDMF, obtain mixed solution; Under the condition stirred, in mixed solution, pass into nitrogen 20min, then add 20mmolBu
3n and 1.0mmolPd (OAc)
2, be warming up to 130 DEG C, and react 4 hours at 130 DEG C; After question response liquid cooling but, wash with water, dichloromethane extraction, obtain organic layer; Anhydrous sodium sulfate drying organic layer; Filter, collect filtrate; By the method for underpressure distillation, the solvent in filtrate is removed, obtain crude product; Crude product is carried out silica gel column chromatography separation, obtains product 4,9-bis-bromo-6-methyl-7-ethyl-benzo [2,1-e:3,4-e] two (selenole) 5.15g, productive rate 65%.
Step 8, preparation 4-NSC 62789 base-2,6-bis-(tributyl tin)-two thieno-[3,2-b:4,5-b '] pyrroles
Under the protection of nitrogen, in there-necked flask, add 0.01mol4-NSC 62789 base-2,6-dibromo two thieno-[3,2-b:4,5-b '] pyrroles and 70ml tetrahydrofuran solvent, obtain mixed solution; Slowly in mixed solution, 8.6mL n-Butyl Lithium (0.02mol) is injected with syringe under-78 DEG C of conditions, and stirring reaction 1 hour; Then under-78 DEG C of conditions, inject 5.6mL tributyltin chloride (0.02mol) again with syringe in mixed solution, stirring reaction continues stirring reaction 6 hours under being warming up to room temperature after 1 hour; Add 30ml saturated sodium-chloride water solution termination reaction, with anhydrous diethyl ether extraction, obtain organic layer; Anhydrous sodium sulfate drying organic layer, after filtering by filtrate collection and rotary evaporation except desolventizing, obtain crude product; Crude product is carried out neutral alumina column chromatography for separation, obtains product, productive rate 70%.
Step 9, preparation are gathered 4-NSC 62789 base two thieno-[3,2-b:4,5-b '] pyrroles-6-methyl-7-ethyl benzo [2,1-e:3,4-e] two (selenole) }
Under nitrogen protection, 0.2mmol4-NSC 62789 base-2 is added in reaction flask, 6-bis-(tributyl tin)-two thieno-[3,2-b:4,5-b '] pyrroles, the bromo-6-methyl of 0.2mmol4,9-bis--7-ethyl benzo [2,1-e:3,4-e] two (selenoles) and 40ml toluene solvant, obtain mixed solution; Vacuumize the oxygen in removing mixed solution and be filled with nitrogen; Then 7.8 × 10 are added
-3mmolPd (PPh
3)
4, and be heated to 90 DEG C of reaction 72h; After reaction, deionized water is added and toluene extracts in the reaction flask of product, get organic phase, by the method for underpressure distillation by multipolymer/toluene solution evaporate to dryness to about about 5ml, be added dropwise in 400ml dehydrated alcohol and constantly stirred, there is solid precipitation to separate out, after suction filtration, oven dry, obtain pressed powder.Again pressed powder chloroform is dissolved, cross chromatography column with neutral alumina, decompression removing organic solvent, methyl alcohol sedimentation.Suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days.Methyl alcohol sedimentation, suction filtration.Be pumped through under vacuum pump and obtain product night.
Multipolymer (P3) after purifying is carried out GPC test, number-average molecular weight Mn ≈ 18320, n=20, and multipolymer monodispersity is 2.7.
Embodiment 4
P4: poly-4-NSC 62789 base two thieno-[3,2-b:4,5-b '] pyrroles-6-(3,7-dimethyl) octyl group-7-eicosyl-benzo [2,1-e:3,4-e] two (selenole) }, there is following structural formula:
The preparation process of above-mentioned copolymer p 4 is as follows:
Step 1-6 is with the step 1-6 in embodiment 1.
Step 7, bromo-6-(2, the 7-dimethyl of preparation 4,9-bis-) octyl group-7-eicosyl benzo [2,1-e:3,4-e] two (diazosulfide)
5mmol4 is added, 4 '-two bromo-6,6 '-two iodo-2,1 in there-necked flask, 3 selenoles, 10mmol2,6-dimethyl-9-30 alkynes (synthetic method reference Chem.Commun., 2011,47,8850-8852) and 30mlDMF, obtain mixed solution; Under the condition stirred, in mixed solution, pass into nitrogen 20min, then add 10mmolBu
3n and 0.5mmolPd (OAc)
2, be warming up to 130 DEG C, and react 4 hours at 130 DEG C; After question response liquid cooling but, wash with water, dichloromethane extraction, obtain organic layer; Anhydrous sodium sulfate drying organic layer; Filter, collect filtrate; By the method for underpressure distillation, the solvent in filtrate is removed, obtain crude product; Crude product is carried out silica gel column chromatography separation, obtains bromo-6-(2, the 7-dimethyl of product 4,9-bis-) octyl group-7-eicosyl benzo [2,1-e:3,4-e] two (diazosulfide) 2.7g, productive rate 62%.
Step 8 is with the step 8 in embodiment 3.
Step 9, preparation are gathered 4-NSC 62789 base two thieno-[3,2-b:4,5-b '] pyrroles-6-(3,7-dimethyl) octyl group-7-eicosyl-benzo [2,1-e:3,4-e] two (selenole) }
Under nitrogen protection, 0.3mmol4-NSC 62789 base-2 is added in reaction flask, 6-bis-(tributyl tin)-two thieno-[3,2-b:4,5-b '] pyrroles, the bromo-6-(2 of 0.2mmol4,9-bis-, 7-dimethyl) octyl group-7-eicosyl benzo [2,1-e:3,4-e] two (selenoles) and 40ml glycol dinitrate ether solvents, obtain mixed solution; Vacuumize oxygen in removing mixed solution and be filled with nitrogen, then adding 0.04mmolPd (PPh
3)
2cl
2, and be heated to 120 DEG C of reaction 100h; After reaction, deionized water is added and toluene extracts in the reaction flask of product, get organic phase, by the method for underpressure distillation by multipolymer/toluene solution evaporate to dryness to about about 5ml, be added dropwise in 400ml dehydrated alcohol and constantly stirred, there is solid precipitation to separate out, after suction filtration, oven dry, obtain pressed powder.Again pressed powder chloroform is dissolved, cross chromatography column with neutral alumina, decompression removing organic solvent, methyl alcohol sedimentation.Suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days.Methyl alcohol sedimentation, suction filtration.Be pumped through under vacuum pump and obtain product night.
Copolymer p 4 after purifying is carried out GPC test, number-average molecular weight Mn ≈ 129800, n=100, and multipolymer monodispersity is 5.8.
Implement 5
P5: poly-4-methyl two thieno-[3,2-b:4,5-b '] pyrroles-6-methyl-7-ethyl benzo [2,1-e:3,4-e] two (selenole) }, there is following structural formula:
The preparation process of above-mentioned copolymer p 5 is as follows:
Step 1-6 is with the step 1-6 in embodiment 1.
Step 7 is with the step 7 in embodiment 3.
Step 8 is with the step 8 in embodiment 2.
Step 9, preparation are gathered 4-methyl two thieno-[3,2-b:4,5-b '] pyrroles-6-methyl-7-ethyl benzo [2,1-e:3,4-e] two (selenole) }
Under nitrogen protection, 0.2mmol4-methyl-2 is added in reaction flask, 6-bis-(tributyl tin)-two thieno-[3,2-b:4,5-b '] pyrroles (154.2mg), 0.3mmol4, the bromo-6-methyl of 9-bis--7-ethyl benzo [2,1-e:3,4-e] two (selenoles) and 40ml solvent benzol, obtain mixed solution; Vacuumize oxygen in removing mixed solution and be filled with nitrogen, then adding 1.5 × 10
-4mmolPd (PPh
3)
2cl
2, and be heated to 50 DEG C of reactions 6 hours; After reaction, deionized water is added and toluene extracts in the reaction flask of product, get organic phase, by the method for underpressure distillation by multipolymer/toluene solution evaporate to dryness to about about 5ml, be added dropwise in 400ml dehydrated alcohol and constantly stirred, there is solid precipitation to separate out, after suction filtration, oven dry, obtain pressed powder.Again pressed powder chloroform is dissolved, cross chromatography column with neutral alumina, decompression removing organic solvent, methyl alcohol sedimentation.Suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days.Methyl alcohol sedimentation, suction filtration.Be pumped through under vacuum pump and obtain product night.
Copolymer p 5 after purifying is carried out GPC test, number-average molecular weight Mn ≈ 650, n=1.
Embodiment 6
The multipolymer prepared with the embodiment of the present invention is active coating, prepares multipolymer solar cell device.Its structure as shown in Figure 2, comprises the substrate of glass 210 stacked gradually, anode 220, middle supplementary layer 230, active coating 240 and negative electrode 250.Wherein, anode 220 is ITO, and be preferably the tin indium oxide (ITO) that square resistance is 10 Ω/, middle supplementary layer 230 adopts poly-(3,4-Ethylenedioxy Thiophene): polystyrolsulfon acid matrix material, is called for short PEDOT:PSS; Active coating 240 comprises electron donor material and electron acceptor material, and electron donor material is multipolymer prepared by the embodiment of the present invention, and electron acceptor material is [6,6] phenyl-C
61-methyl-butyrate (being called for short PCBM); Negative electrode 250 is aluminium, and namely this device architecture briefly can be described as glass/ITO/PEDOT:PSS/ active coating/Al.
The preparation method of above-mentioned multipolymer solar cell device is summarized as follows: using substrate of glass as bottom, and choose ito glass (with anode ITO layer, can buy) during making, thickness is 1.1mm, after ultrasonic cleaning, processes with oxygen-Plasma; Then the middle supplementary layer PEDOT:PSS of coating on ito glass, thickness is 110nm; Again multipolymer prepared by the 10mg embodiment of the present invention is dissolved in 0.4mL dimethylbenzene, be dissolved in 8mgPCBM the solution blending that 0.4mL chlorobenzene obtains, be spun on PEDOT:PSS rete, thickness is about 150nm, obtains active coating; At vacuum condition (2 × 10
-3pa) evaporation cathodic metal aluminium under, thickness is 120nm, obtains multipolymer solar cell device.Preparation method and the structure of the multipolymer solar cell device containing multipolymer of the present invention are not limited to the present embodiment, can suitably improve device or modify.
The multipolymer (P1, P2 and P3) prepared using embodiment 1,2 and 3 has respectively prepared multipolymer solar cell device as active layer material, and obtain device 1,2 and 3, all preparation process are all carried out in the glove box providing nitrogen inert atmosphere.
By the I-E characteristic of Keithley236 current/voltage source-measuring system and test component, obtain the performance data of device in table 1.
Table 1
As seen from the data in Table 1, the energy conversion efficiency of the multipolymer solar cell that the multipolymer obtained with the present invention is prepared as active coating is 0.90% ~ 1.38%, show that the multipolymer containing two thiophene pyrroles and benzo two (selenole) unit of the present invention can mate preferably with solar spectrum, and the carrier mobility containing the multipolymer of two thiophene pyrroles and benzo two (selenole) unit is higher, ratio and charge collection efficiency that current carrier arrives electrode can be improved, thus raising effciency of energy transfer, and the improvement passed through device architecture or modification, higher effciency of energy transfer can be obtained.
Embodiment 7
To the preparation of organic electroluminescence device containing multipolymer of the present invention, its structure as shown in Figure 3:
The copolymer p 1 prepared with embodiment 1 is for luminescent layer, and prepare organic electroluminescence device, its structure as shown in Figure 3, comprises the glass substrate 310 stacked gradually, transparent anode 320, anode buffer layer 330, luminescent layer 340, cathode buffer layer 350 and negative electrode 360.Wherein, transparent anode 320 is preferably the tin indium oxide (ITO) that square resistance is 10 Ω/, thickness is 150nm, anode buffer layer 330 adopt thickness be 30nm PEDOT:PSS preparation; Copolymer p 1 prepared by the embodiment 1 that luminescent layer 340 is 100nm for thickness, cathode buffer layer 350 for thickness be the LiF of 1.5nm, negative electrode 360 for thickness be the metal A l of 150nm, the structure of device is: glass/ITO/PEDOT:PSS/ copolymer p 1/LiF/Al, but the structure of practical devices is not limited thereto.
Current versus brightness-the voltage characteristic of above-mentioned organic electroluminescence device is tested by Keithley source measuring system (Keithley2400Sourcemeter), with French its electroluminescent spectrum of JY company SPEXCCD3000 spectrometer measurement, all measurements all complete in atmosphere at room temperature, the high-high brightness efficiency recording organic electroluminescence device is 14.5cd/A, and high-high brightness is 1188cd/m
2.The above results shows, multipolymer prepared by embodiment 1 can improve luminance efficiency and high-high brightness as the luminescent layer of organic electroluminescence device.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. contain a multipolymer for two Thienopyrroles and benzo two (selenole) unit, there is following structural formula:
Wherein, n is the integer of 1 ~ 100;
R
1, R
2and R
3for C
1~ C
20alkyl.
2. contain a preparation method for the multipolymer of two Thienopyrroles and benzo two (selenole) unit, comprise the steps:
There is provided compd A and compd B, the structural formula of compd A is:
The structural formula of compd B is:
Wherein, R
1, R
2and R
3for C
1~ C
20alkyl;
Under shielding gas atmosphere; be that the ratio of 1:1.5 ~ 1.5:1 carries out Stille coupled reaction under catalyzer and organic solvent existent condition according to mol ratio by compd A and compd B; wherein; temperature of reaction is 50 ~ 120 DEG C; reaction times is 6 ~ 100 hours, obtains the multipolymer containing two Thienopyrroles and benzo two (selenole) unit with following structural formula after separation and purification:
Wherein, n is the integer of 1 ~ 100.
3. the preparation method containing the multipolymer of two Thienopyrroles and benzo two (selenole) unit as claimed in claim 2, it is characterized in that, described catalyzer is Pd
2(dba)
3, Pd (PPh
3)
4or Pd (PPh
3)
2cl
2, the molar weight of described catalyzer is 0.05% ~ 20% of the molar weight of described compd B; Described organic solvent is tetrahydrofuran (THF), glycol dimethyl ether, benzene or toluene;
The step of described separation and purification is:
Toluene is added and deionized water extracts in reaction system, get organic phase, at least part of solvent of described organic phase is removed by the method for underpressure distillation, again described organic phase is added dropwise to precipitating in anhydrous methanol, suction filtration, pressed powder is obtained after oven dry, again described pressed powder chloroform is dissolved, with neutral alumina chromatography column removing catalyzer, finally remove chloroform, use methyl alcohol sedimentation, suction filtration, gained solid acetone apparatus,Soxhlet's extracts three days, methyl alcohol sedimentation, suction filtration, be pumped through under vacuum pump and obtain the multipolymer containing two Thienopyrroles and benzo two (selenole) unit after purifying night.
4. the preparation method containing the multipolymer of two Thienopyrroles and benzo two (selenole) unit as claimed in claim 2, is characterized in that, described compd A is adopted and prepared with the following method:
There is provided Compound C, the structural formula of Compound C is:
Under shielding gas atmosphere; Compound C and n-Butyl Lithium are reacted 1 ~ 2 hour in tetrahydrofuran (THF) according to the ratio that mol ratio is 1:2 under the condition of-78 DEG C; then add tributyltin chloride under the condition of-78 DEG C, continue reaction 1 hour; then room temperature is warming up to; react 6 hours under room temperature; obtain described compd A, wherein, the ratio of the mol ratio of tributyltin chloride and Compound C is 2:1.
5. the preparation method containing the multipolymer of two Thienopyrroles and benzo two (selenole) unit as claimed in claim 2, is characterized in that, described compd B is adopted and prepared with the following method:
There is provided Compound D and compd E, the structural formula of Compound D is:
The structural formula of compd E is:
Under shielding gas atmosphere, by Compound D, compd E and Bu
3n is that 1:2:1 ratio is at catalyst P d (OAc) according to mol ratio
2carry out ring closure reaction with under solvent DMF existent condition, obtain described compd B, wherein, temperature of reaction is 130 DEG C, and the reaction times is 4 hours, Pd (OAc)
2molar weight be 10% of the molar weight of Compound D.
6. the preparation method containing the multipolymer of two Thienopyrroles and benzo two (selenole) unit as claimed in claim 5, is characterized in that, described Compound D is adopted and prepared with the following method:
There is provided compound F 17-hydroxy-corticosterone, the structural formula of compound F 17-hydroxy-corticosterone is:
Under shielding gas atmosphere, compound F 17-hydroxy-corticosterone is joined in ethanol, obtain mixed solution, under the condition of backflow, in described mixed solution, drip SeO
2the aqueous solution, and back flow reaction 2 hours, obtains described Compound D.
7. the preparation method containing the multipolymer of two Thienopyrroles and benzo two (selenole) unit as claimed in claim 6, is characterized in that, described compound F 17-hydroxy-corticosterone is adopted and prepared with the following method:
There is provided compound G, the structural formula of compound G is:
Under shielding gas atmosphere, compound G is joined in ethanol, obtains suspension, then, at 0 DEG C, in described suspension, drip sodium borohydride, then react 20 hours in stirred at ambient temperature, obtain described compound F 17-hydroxy-corticosterone.
8. the preparation method containing the multipolymer of two Thienopyrroles and benzo two (selenole) unit as claimed in claim 7, is characterized in that, described compound G adopts and prepares with the following method:
There is provided compound H, the structural formula of compound H is:
Compound H, copper powder and DMF are mixed, be heated to 120 DEG C of reactions after 3 hours, be cooled to room temperature, add toluene, stir 30 minutes, obtain Compound I, the structural formula of Compound I is:
By Compound I, tetrahydrofuran (THF) and SnCl
2mixing, heating reflux reaction 10 hours, after cooling, with sodium hydroxide solution adjust pH to 8.0, anhydrous diethyl ether extracts, rotary evaporation gained organic layer, obtain solid crude product, add hydrochloric acid, agitation and dropping sodium nitrite solution in 30 minutes, temperature controls below 5 DEG C, after dropwising, reacts 30 minutes, then reacted solution is added dropwise in liquor kalii iodide, vigorous stirring, reacts 12 hours, stopped reaction, with sodium hydroxide solution adjust pH to 7.0, obtains described compound G.
9. the preparation method containing the multipolymer of two Thienopyrroles and benzo two (selenole) unit as claimed in claim 8, is characterized in that, described compound H is adopted and prepared with the following method:
There is provided compound J, the structural formula of compound J is:
Mixed with thionyl chloride by compound J, stir and slowly drip pyridine, heating reflux reaction 24 hours, obtains compound K, and the structural formula of compound K is:
Mixed with Hydrogen bromide by compound K, after being warming up to 127 DEG C, in 30 minutes, slowly drip bromine, then back flow reaction 4 hours, obtains described compound H.
10. the application of multipolymer in multipolymer solar cell device, organic electroluminescence device, organic field effect tube, organic optical storage and organic laser containing two Thienopyrroles and benzo two (selenole) unit as claimed in claim 1.
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