CN109293643A - A kind of organic second order non-linear optical chromophore and its preparation method and application of flexible isolating base group modification - Google Patents

A kind of organic second order non-linear optical chromophore and its preparation method and application of flexible isolating base group modification Download PDF

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CN109293643A
CN109293643A CN201710606869.4A CN201710606869A CN109293643A CN 109293643 A CN109293643 A CN 109293643A CN 201710606869 A CN201710606869 A CN 201710606869A CN 109293643 A CN109293643 A CN 109293643A
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甄珍
陈璐
和延岭
薄淑晖
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Technical Institute of Physics and Chemistry of CAS
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Abstract

The invention discloses a kind of organic second order non-linear optical chromophores of flexible isolating base group modification, have a structure thatWherein, R1For the alkyl of C1~C20, the hydroxyalkyl of C1~C10, the hydroxyalkyl of the C1~C10 protected by halogen atom or by the hydroxyalkyl of C1~C10 of protected silane;R2For methyl or trifluoromethyl;R3For the alkyl or phenyl of C1~C20.Electron donor, conjugated pi electron bridge and electron acceptor of the invention can increase intermolecular steric hindrance after combining very well, inhibit the accumulation generated between chromophore molecule by dipole-dipole interaction, intramolecular electron transport ability is improved, conversion of the First-order Molecular Hyperpolarizability of chromophore molecule to material macroscopic view electro-optic coefficient is effectively improved.

Description

A kind of organic second order non-linear optical chromophore and its system of flexible isolating base group modification Preparation Method and application
Technical field
The present invention relates to organic second-order non-linear optical field of material technology.More particularly, to a kind of flexible isolating base The organic second order non-linear optical chromophore and its preparation method and application of group's modification.
Background technique
With the fast development of information age, so that the requirement at this stage to communication information material is higher and higher.Due to light Electronic technology can greatly improve communication efficiency using electric light and photoelectric conversion and all-optical network, to meet information world Construction and fiber to the home projected demand, therefore in recent decades nonlinear optical material attract always people research it is emerging Interest is applied to the practical field such as optic communication, photoelectronics and optical information processing.
Integrated optics system has small in volume and more embodies the advantage of photon transmission, believes in optic communication, light The high-tech sectors such as breath processing, optical sensing, automatic control, electronic countermeasure, photon confrontation, photonic computer have widely Using.And integrated photosystem includes the important devices such as waveguide fiber, photoswitch, photoconverter, wherein critical light is converted Device is fabricated by nonlinear optics (NLO) material.
Current commercialized second-order non-linear optical materials are based on inorganic material, but there are electric light for inorganic material The defects of coefficient is small, and corresponding time is long, to limit its extensive use.Compare inorganic material, nonlinear optical organic material Material has super fast response speed (subpicosecond even picosecond), low-k, high light injury threshold (GW/cm2Magnitude), it is processable Performance is good, relatively large nonlinear optical response (1~2 order of magnitude usually higher than mineral crystal) and easy processing processing etc. are excellent Point, therefore have been to be concerned by more and more people.In order to reach practical requirement, these organic materials will not only have big non-thread Property optic response, and to meet requirement of the device to its transparency, stability and machinability etc. simultaneously.Due to having The nonlinear optical response of machine material depends on the nonlinear optical properties of wherein chromophore molecule, so design synthesis has both greatly Electro-optic coefficient (i.e. the single order molecular hyperpolarizability (β) of micro molecule level and the electro-optic coefficient (r of macroscopic material33)) and it is good The good transparency, the second-order nonlinear optical chromophore molecule of stability be always for a long time most challenging project it One.
Although the chromophore at present about the related work of second-order nonlinear optical chromophore, in these work With very high non-linearity optical coefficient and few.At present it has been reported that these chromophories there is biggish point in the polymer Interaction force between son causes molecule to be easy aggregation, is converted to macroscopic view so as to cause microcosmic single order molecular hyperpolarizability (β) Electro-optic coefficient (the r of material33) efficiency it is relatively low, electro-optic coefficient is smaller, is not able to satisfy the requirement of device.
Therefore, the present invention provides a kind of organic second order non-linear optical chromophores of flexible isolating base group modification.
Summary of the invention
It is an object of the present invention to provide a kind of organic second-order non-linear optical color developments of flexible isolating base group modification Group.The organic second order non-linear optical chromophore steric hindrance of flexible isolating base group modification in the present invention is larger, is not easy to accumulate, dissolve Property it is good, stability is good, with it is polymer-doped after good film-forming property, be easy to polarize, microcosmic First-order Molecular Hyperpolarizability is to macroscopical electric light system Number high conversion efficiency is easy to device
It is another object of the present invention to provide a kind of organic second-order non-linear optical of flexible isolating base group modification hairs The preparation method of color group.
In order to achieve the above first purpose, the present invention adopts the following technical solutions:
A kind of organic second order non-linear optical chromophore of flexible isolating base group modification has the structure as shown in general formula I:
Wherein, R1For alkyl, hydroxyalkyl, by the hydroxyalkyl of halogen atom protection or by the hydroxyalkyl of protected silane;It is preferred that Ground, R1For alkyl, hydroxyalkyl or by the hydroxyalkyl of protected silane;
R2For methyl or trifluoromethyl;
R3For alkyl or phenyl.
According to the preferred embodiment of the present invention, the alkyl is the alkyl of C1~C20;Further, of the invention In certain specific embodiments, for example, alkyl is preferably the alkyl of C1~C15, C1~C10, C1~C5;It is highly preferred that alkyl For the alkyl of C5~C20, C10~C20, C15~C20.
According to the preferred embodiment of the present invention, the hydroxyalkyl is the hydroxyalkyl of C1~C10;Further, in this hair In bright certain specific embodiments, for example, hydroxyalkyl is preferably the hydroxyalkyl of C1~C8, C1~C5, C1~C3;More preferably Ground, hydroxyalkyl are the hydroxyalkyl of C3~C10, C5~C10, C8~C10.
According to the preferred embodiment of the present invention, the hydroxyalkyl protected by halogen atom is to be protected by halogen atom The hydroxyalkyl of C1~C10;Further, in certain specific embodiments of the invention, for example, the hydroxyl protected by halogen atom Alkyl is preferably the C1~C8 protected by halogen atom, the hydroxyalkyl of C1~C5, C1~C3;It is highly preferred that being protected by halogen atom The hydroxyalkyl of shield is the C3~C10 protected by halogen atom, the hydroxyalkyl of C5~C10, C8~C10.
According to the preferred embodiment of the present invention, the hydroxyalkyl by protected silane is by C1~C10 of protected silane Hydroxyalkyl;Further, in certain specific embodiments of the invention, for example, being preferably by the hydroxyalkyl of protected silane By the hydroxyalkyl of C1~C8 of protected silane, C1~C5, C1~C3;It is highly preferred that being by silane by the hydroxyalkyl of protected silane The hydroxyalkyl of C3~C10 of protection, C5~C10, C8~C10.
According to the preferred embodiment of the present invention, the silane in the hydroxyalkyl by protected silane be trimethyl silane, T-butyldimethyl silane, t-butyl diphenylsilane or dimethylphenylsilaneand.
Chromophore in the present invention is using the triphenylamine and its derivative that flexible isolating group is modification as donor, with thiophene Ring or ring polyenes structure are conjugated electrons bridge, with tricyano-dihydrofuran (TCF) or three fluorine-substituted tricyano-dihydrofurans (CF3- TCF) it is that electron acceptor has having for D- π-A structure (D being electron donor, and π is conjugated electrons bridge, and A is electron acceptor) Machine second-order nonlinear optical chromophore, such chromophore have biggish steric hindrance, are not easy to accumulate, dissolubility is good, stability is good, with It is polymer-doped after good film-forming property, be easy to polarize, microcosmic First-order Molecular Hyperpolarizability to macroscopical electro-optic coefficient high conversion efficiency, be easy to The advantages of device.
To reach above-mentioned second purpose, the present invention is adopted the following technical solutions:
A kind of preparation method of the organic second order non-linear optical chromophore of flexible isolating base group modification, including walk as follows It is rapid:
I) in anhydrous n,N-Dimethylformamide, Compounds of formula II, R0- X and Carbon Dioxide nak response, collection obtain Compound of formula III;
Wherein R0X is halogen atom, R in-X0For the alkyl of C1~C20 or the hydroxyalkyl of C1~C10;General formula II is as follows:
General formula III is as follows:
Wherein R1For alkyl, hydroxyalkyl, by the hydroxyalkyl of halogen atom protection or by the hydroxyalkyl of protected silane;It is preferred that Ground, R1For alkyl, hydroxyalkyl or by the hydroxyalkyl of protected silane;Silane in the hydroxyalkyl by protected silane is trimethyl Silane, t-butyldimethyl silane, t-butyl diphenylsilane or dimethylphenylsilaneand.Formula of III compound of the present invention Branch with oxygen atom connection has certain electron performance, while can be improved the solubility property of the compound.
Ii compound of formula III, thenyl triphenylphosphine and the Cymag for) obtaining step i), in anhydrous ether Reaction, collection obtain compound of Formula IV, and formula of IV is as follows
Wherein R1For alkyl, hydroxyalkyl, by the hydroxyalkyl of halogen atom protection or by the hydroxyalkyl of protected silane;It is preferred that Ground, R1For alkyl, hydroxyalkyl or by the hydroxyalkyl of protected silane.Silane in the hydroxyalkyl by protected silane is trimethyl Silane, t-butyldimethyl silane, t-butyl diphenylsilane or dimethylphenylsilaneand.In formula of IV compound of the present invention Branch with oxygen atom connection, can enhance the electron donation of donor, while to facilitate substance molten for the introducing of flexible branch The raising of solution property.
Iii it) mix the compound of Formula IV that step ii) is obtained with the tetrahydrofuran steamed again after, is catalyzed in n-BuLi Under, it is reacted with the n,N-Dimethylformamide steamed again, collection obtains compounds of formula V, and formula of V is as follows
Wherein R1For alkyl, hydroxyalkyl, by the hydroxyalkyl of halogen atom protection or by the hydroxyalkyl of protected silane;It is preferred that Ground, R1For alkyl, hydroxyalkyl or by the hydroxyalkyl of protected silane.Silane in the hydroxyalkyl by protected silane is trimethyl Silane, t-butyldimethyl silane, t-butyl diphenylsilane or dimethylphenylsilaneand.Formula of V compound tool of the present invention There is good solubility property.
Iv compounds of formula V and 2,2- dicyano) are pitched into base -3- cyano -4- methyl -5-R2-5-R3Furans is anti-in ethanol It answers, wherein R2For methyl or trifluoromethyl, R3For alkyl or phenyl, the organic second that collection obtains flexible isolating base group modification is non- Linear optics chromophore.
Electron donor, conjugated pi electron bridge and electron acceptor of the invention can increase intermolecular steric hindrance after combining very well, press down Because of the accumulation that dipole-dipole interaction generates between chromophore molecule processed, intramolecular electron transport ability is improved, is effectively improved Conversion of the First-order Molecular Hyperpolarizability of chromophore molecule to material macroscopic view electro-optic coefficient.
According to the preferred embodiment of the present invention, the preparation method, specifically comprises the following steps:
1) under inert gas protection, by Compounds of formula II, R0- X and Anhydrous potassium carbonate are dissolved in anhydrous N, N- dimethyl In formamide, temperature reaction is stirred, room temperature is down to after reaction, obtains solution A after deionized water is added;Solution A is extracted, Merge organic phase, dry, filter, rotate, pillar layer separation, obtains compound of formula III after dry;
2) compound of formula III, thenyl triphenylphosphine and Cymag are dissolved in anhydrous ether, are stirred at room temperature It mixes, product is poured into obtain solution B in ice water after completion of the reaction;Solution B is extracted, is dried, filtered, is rotated, column chromatography Separation obtains compound of Formula IV after dry;
3) compound of Formula IV is dissolved in the tetrahydrofuran steamed again and obtains solution C, cooled down under inert gas protection, added Enter n-BuLi, obtain solution D after stirring, the N steamed again is added into solution D, N- dimethylformamide obtains solution E, carries out Stirring, is warmed to room temperature reaction again after stirring;It is terminated and is reacted with deionized water after completion of the reaction, obtain solution F;Solution F is carried out Extraction, dries, filters, and rotates, pillar layer separation, obtains compounds of formula V after dry;
4) compounds of formula V and 2,2- dicyano are pitched into base -3- cyano -4- methyl -5-R2-5-R3Furans is dissolved in ethyl alcohol Solution F is obtained, solution F is stirred at reflux reaction;Be cooled to room temperature, rotate, pillar layer separation after completion of the reaction, obtain it is flexible every Organic second order non-linear optical chromophore from base group modification.
According to the preferred embodiment of the present invention, in step 1), the Compounds of formula II, R0- X and Anhydrous potassium carbonate Molar ratio is 1~1.2:2:2.Invention technician has found in the course of the research, under the molar ratio, reaction be easier into Row.Preferably, the Compounds of formula II, R0The molar ratio of-X and Anhydrous potassium carbonate is 1~1.2:2:2, in preferably ratio Under range, obtained bearing reaction yield is higher.
According to the preferred embodiment of the present invention, in step 1), stirring is warming up to 100~150 DEG C, and the temperature is kept to stir React 10~15h.Preferably, stirring is warming up to 110~135 DEG C, more preferably 110~120 DEG C.Preferably, mixing time is 11~13h, more preferably 11~12.5h.Under the conditions of more preferably mixing time and preferred temperature, the effect of reaction is more It is good.
According to the preferred embodiment of the present invention, extracted described in step 1) extractant that uses be ethyl acetate, chloroform, Methylene chloride or ether etc..Preferably, extractant is ethyl acetate in step 1), and invention technician sends out in the course of the research Existing, the selection of extractant affects to separation purity.When extractant is ethyl acetate, the effect of extraction is optimal.
According to the preferred embodiment of the present invention, the dry desiccant used described in step 1) is anhydrous MgSO4Or Na2SO4Deng.Preferably, desiccant is anhydrous MgSO in step 1)4.Invention technician has found in the course of the research, dry The selection of agent has some impact on the acid-base property of solution.When desiccant is anhydrous MgSO4When, dry effect is optimal.
According to the preferred embodiment of the present invention, inert gas described in step 1) is nitrogen.
According to the preferred embodiment of the present invention, compound of formula III described in step 2), thenyl triphenylphosphine and Molar ratio 1:1:15~30 of Cymag.Invention technician has found in the course of the research, select three's reactant and Reaction ratio range is reacted, and yield is higher after reaction;Preferably, the compound of formula III, thenyl triphen Base phosphine and Cymag are 1~1.3:1.5:18, and under preferably proportional region, obtained bearing reaction is high-efficient.
According to the preferred embodiment of the present invention, in step 2), mixing time be 8~for 24 hours.Preferably, mixing time 8 ~18h, more preferably 10~15h.Under the conditions of more preferably mixing time, the effect not only reacted is more preferable, but also the production reacted Rate is high.
According to the preferred embodiment of the present invention, it is ethyl acetate, dichloro that the extractant used is extracted described in step 2) Methane or chloroform etc..Preferably, extractant is ethyl acetate in step 2), and invention technician has found in the course of the research, The selection of extractant affects to the purity of product.When extractant is ether, the effect of extraction is optimal.
According to the preferred embodiment of the present invention, the dry desiccant used described in step 2) is anhydrous MgSO4Or Na2SO4Deng.Preferably, desiccant is MgSO in step 2)4.Invention technician has found in the course of the research, desiccant Selection affects to the acid-base property of solution.When desiccant is anhydrous MgSO4When, dry effect is optimal.
According to the preferred embodiment of the present invention, the solubility of solution C described in step 3) is 0.1~0.5mol/l, described The concentration of solution D is 0.15~0.3mol/l, and the concentration of the solution E is 0.25~0.6mol/l.Invention technician exists It is found in research process, the concentration of reactant will affect the yield of product;Preferably, the solubility of the solution C be 0.1~ 0.15mol/l, the concentration of the solution D are 0.15~0.25mol/l, and the concentration of the solution E is 0.25~0.4mol/l, Preferably under proportional region, obtained result is that the result of reaction is preferable, and yield is higher.
According to the preferred embodiment of the present invention, inert gas described in step 3) is nitrogen, and the cooling temperature is -70 ~-80 DEG C.Invention technician has found in the course of the research, is cooled down using nitrogen to solution C, temperature can be made to drop to It is sufficiently low, and safety and environmental protection.Preferably, the cooling temperature is -70~-80 DEG C, more preferably -72~-78 DEG C.More excellent Cooling temperature under the conditions of, the effect not only reacted is more preferable, but also yield is higher.
According to the preferred embodiment of the present invention, mixing time is 1~2h after n-BuLi is added in step 3).It is preferred that Ground, mixing time are 1~1.5h, more preferably 1.2~1.5h.Under the conditions of more preferably mixing time, not only mixed effect is more It is good, and yield is higher.
It according to the preferred embodiment of the present invention, is 1~2h to solution E mixing time in step 3).Preferably, when stirring Between be 1~1.5h, more preferably 1.2~1.5h.Under the conditions of more preferably mixing time, solution good mixing effect, yield is higher.
According to the preferred embodiment of the present invention, the reaction time in step 3) at room temperature is 20~40min.Preferably, Reaction time is 20~35min, more preferably 25~30min.Under the conditions of the more preferably reaction time, the reaction knot that not only obtains Fruit is more preferable, and the yield reacted is higher.
According to the preferred embodiment of the present invention, extracted described in step 3) extractant that uses be ethyl acetate, chloroform, Methylene chloride and ether etc..Preferably, extractant is ethyl acetate in step 3), and invention technician sends out in the course of the research Existing, the selection of extractant affects to the extraction purity of product.When extractant is ethyl acetate, the effect of extraction It is optimal.
According to the preferred embodiment of the present invention, step 4) formula of V compound and 2,2- dicyano pitch base -3- cyano - 4- methyl -5-R2-5-R3The molar ratio of furans is 1~1.5:1.2~1.8, and invention technician has found in the course of the research, Both the above reactant is selected to be reacted, reaction effect is good;Preferably, the compound D and 2,2- dicyano pitch base -3- cyanogen Base -4- methyl -5-R2-5-R3The molar ratio of furans is 1~1.2:1.2~1.5, under preferably proportional region, obtained knot Fruit reaction yield is high.
According to the preferred embodiment of the present invention, reaction temperature described in step 4) is 50~80 DEG C, the reaction time For 4~6h.Preferably, reaction temperature is 55~75 DEG C, and the reaction time is 4~5.5h;More preferable reaction temperature is 60~70 DEG C, Time is 4~5h.Under the conditions of more preferably reaction time and preferred temperature, the effect of reaction is more preferable.
To reach above-mentioned third purpose, the present invention is adopted the following technical solutions:
A kind of organic second order non-linear optical chromophore answering in optical signal modulation material of flexible isolating base group modification With the optical signal modulation material passes through the organic second order non-linear optical chromophore and the doping preparation of unformed polycarbonate It obtains.It is a discovery of the invention that the organic second order non-linear optical chromophore that the present invention is prepared is mixed with unformed polycarbonate Miscellaneous obtained optical signal modulation material, the material thermal stability is high and can generate more stable electro-optic coefficient.
According to the preferred embodiment of the present invention, the organic second order non-linear optical chromophore and unformed polycarbonate Mass ratio be 1:1~100.Preferably, the mass ratio is 1:3~10.Present invention discover that the mass ratio influences system Stability, under preferred embodiment, obtained material is more excellent.
The present invention has in the preparation method of the organic second order non-linear optical chromophore of flexible isolating base group modification, reaction The conditions such as the post-processing that the ratio of middle reactant, the mixing time of reaction, reaction terminate are both needed to strict control, only strict control These good conditions could enable yield height, reaction effect that organic second order non-linear optical chromophore is prepared good.
It is that the primary technology overcome in the present invention is asked in addition, how to introduce the structure with oxygen atom branch into donor Topic.In order to overcome the above technical problems, the present invention is by efficient reaction method, in modulation a large amount of by a series of accurate Afterwards, flexible isolating group in being introduced into chromophore ensure that the unique structure of chromophore and preferable performance, finally It is prepared for the material with preferable electro-optical properties.I.e. the technical scheme is that a unified entirety, each technical characteristic It is not Line independent, can interacts between different technologies feature, therefore the realization of the final technical effect of the present invention, it is necessary to Dependent on the entirety that can not be split of all technical characteristic organic integration, rather than the simple adduction of several technical characteristics.
In addition, unless otherwise specified, any range documented by the present invention includes any number between end value and end value Any subrange that any number between value and end value or end value is constituted.
Beneficial effects of the present invention are as follows:
(1) knot of the organic second order non-linear optical chromophore and traditional chromophore with D- π-A structure of the invention Structure is compared, and electron donor has selected introducing flexible isolating group on triphenylamine and its derivative, on the one hand has bigger sky Between steric hindrance, can effectively reduce intermolecular interaction force, improve polarization efficiency, and then improve the single order of chromophore molecule Molecular hyperpolarizability (β) is converted to the efficiency of macroscopical electro-optic coefficient, is furthermore possible to enhancing chromophore in conventional organic solvent Dissolubility.
(2) electronics used in the organic second order non-linear optical chromophore provided by the invention with D- π-A structure is given Body, conjugated pi electron bridge and electron acceptor combine rear intramolecular electron transport ability enhancing, and electro-optic coefficient can be improved Transformation efficiency;In addition, the organic second order non-linear optical chromophore being prepared in the present invention and unformed polycarbonate adulterate It can be used for synthetic polymer film, synthesized thin polymer film is as synthesis optical signal modulation materials'use, to meet device Change and requires.
(3) synthesis step of the organic second order non-linear optical chromophore with D- π-A structure of the invention is simple, synthesis Yield is high, with good dissolubility, higher thermal stability, with superelevation single order molecule super in most of organic solvents Rate (β value) is converted to macroscopical electro-optic coefficient (r33) efficiency, with it is polymer-doped after intermolecular force is small, film forming Well, the advantages that being easy to polarization and device, can be widely applied to electrooptical material field.
Specific embodiment
In order to illustrate more clearly of the present invention, below with reference to preferred embodiment, the present invention is described further.Ability Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, this should not be limited with this The protection scope of invention.
Embodiment 1
A kind of preparation of the organic second order non-linear optical chromophore CL of flexible isolating base group modification, the structure of CL are as follows:
Preparation route is as follows:
Specific step is as follows:
1) synthesis of compound 1, using Enhanced electro-optic activity from the triarylaminophenyl-based chromophores by introducing heteroatoms to the donor Method.
The phosphorus oxychloride of 1.0mL, that is, 11mmol is added dropwise in 5mL n,N-Dimethylformamide i.e. DMF at 0 DEG C, is stirred After mixing reaction 2h, the DMF solution of the 10mL of the 3- methoxyl group triphenylamine dissolved with the i.e. 10.91mmol of 3.0g is slowly added dropwise thereto. Reaction temperature is risen to 90 DEG C and is stirred to react 2h.After cooling, mixed solution is poured into cold water, and is added 1mol/l's NaHCO3Solution adjusts pH until solution presentation neutrality, and is extracted with ethyl acetate, and merges organic phase, with anhydrous MgSO4It is dry It is dry overnight, it then filters, filtered fluid is rotated and removes ethyl acetate, gained crude product is subjected to pillar layer separation, wherein petroleum The volume ratio of ether and ethyl acetate is 80:1, obtains the compound solid compound 1 of yellow, yield 88%.
It is as follows to the Measurement results of compound 1:
1H NMR(500MHz,CDCl3) δ 3.69 (s, 3H), 6.45 (d, J=1.5,1H), 6.52-6.54 (dd, J= 8.5and 2,1H), 7.16-7.19 (m, 6H) 7.33-7.36 (t, 4H), 7.65-7.67 (dd, J=9 and 0.5,1H), 10.23(s,1H).
13C NMR(125MHz,CDCl3)55.39,101.74,112.22,118.21,125.15,126.44, 129.64, 129.88,146.13,154.84,163.09,187.79.
MS(EI):m/z calcd for C20H17NO2:303.4;found:303.1
2) synthesis of compound 2, method use Triphenylamine based new Schiff base ligand: Solvent dependent selective fluorescence sensing of Mg2+and Fe3+ions。
In N2Protection in, the compound 1 of 1.0g, that is, 3.3mmol is dissolved in the anhydrous methylene chloride of 10ml, by reaction solution - 78 DEG C are reduced to, the 1mL i.e. BBr of 9.9mmol is added dropwise3, after being added dropwise, 10h is stirred at this temperature, is heated up later To room temperature, deionized water, quenching reaction is added.Mixed liquor is extracted with ethyl acetate, merges organic phase, with anhydrous MgSO4It is dry It is dry overnight, it then filters, filtered fluid is rotated and removes ethyl acetate, gained crude product is subjected to pillar layer separation, wherein petroleum The volume ratio of ether and ethyl acetate is 50:1, obtains the compound solid compound 2 of yellow, yield 92%.
It is as follows to the Measurement results of compound 2:
1H NMR(500MHz,CDCl3,d,ppm):11.40(s,1H,–CHO),9.58(s,1H, Ar–OH),7.34(m, 4H, Ar-H), 7.25 (d, J=8.5Hz, 1H, Ar-H), 7.25-7.18 (m, 6H, Ar-H), 6.45 (d, J=8.5Hz, 1H, Ar-H), 6.34 (d, J=1.6Hz, 1H, Ar-H)
MS(EI):m/z calcd for C19H15NO2:289.3;found:289.1
3) synthesis of compound 3
In N2Protection in, the compound 2 of 2g, that is, 6.9mmol is dissolved in the anhydrous DMF of 25ml, into solution plus Enter the 6- Mecoral and the 2g i.e. Anhydrous potassium carbonate of 13.6mmol of the i.e. 13.8mmol of 2g, stirring is warming up to 120 DEG C, at this temperature 12h is stirred, after completion of the reaction, room temperature is cooled to, injects deionized water, mixed liquor is extracted with ethyl acetate, merge organic phase, With anhydrous MgSO4It is dried overnight, then filters, filtered fluid is rotated and removes ethyl acetate, gained crude product is subjected to column chromatography Separation, wherein the volume ratio of petroleum ether and ethyl acetate is 50:1, obtains the compound solid compound 3 of yellow, yield is 86%.
It is as follows to the Measurement results of compound 3:
1H NMR (400MHz, Acetone) δ 10.26 (s, 1H), 7.59 (d, J=8.6Hz, 1H), 7.41 (t, J= 7.7Hz, 4H), 7.25 (m, 6H), 6.51 (s, 1H), 6.46 (d, J=8.7Hz, 1H), 3.88 (t, J=6.3Hz, 2H), 3.53 (t, J=6.0Hz, 2H), 3.38 (t, J=5.1Hz, 1H), 1.76 (m, 2H), 1.52 (m, 2H), 1.42 (m, 4H)
MS(EI):m/z calcd for C25H27NO3:389.5;found:389.2
4) synthesis of compound 4
Under nitrogen protection, by the bromination -2- thienyl-three of the compound 3 of 1.0g, that is, 2.6mmol and 1.24g, that is, 2.8mmol Phenylphosphine is dissolved in 8ml and steams in tetrahydrofuran again, and the 0.81g i.e. NaH of 0.034 mol is then added, stirs at normal temperature for 24 hours, It is poured slowly into the saturation NH of 100ml after completion of the reaction4Cl solution, is extracted with ether, by organic phase extracted with anhydrous MgSO4 It is dry, the organic phase after drying is filtered, revolving removes ether, by gained crude product pillar layer separation, wherein petroleum ether: second The volume ratio of acetoacetic ester is 10:1, obtains yellow solid compound 4, yield 69% after dry.
It is as follows to the Measurement results of compound 4:
1H NMR (400MHz, Acetone) δ 7.31 (t, J=7.6Hz, 4H), 7.24 (d, J=6.5Hz, 2H), 7.11 (t, J=6.6Hz, 4H), 7.08 (t, J=4.9Hz, 2H), 7.06 (d, J=8.2Hz, 1H), 6.92 (t, J=3.9Hz, 1H), 6.73 (d, J=11.9Hz, 1H), 6.68 (s, 1H), 6.54 (d, J=8.3Hz, 1H), 6.49 (d, J=11.9Hz, 1H), 3.79 (t, J=6.3Hz, 2H), 3.49 (q, J=6.0Hz, 2H), 3.36 (t, J=5.0Hz, 1H), 1.62 (m, 2H), 1.58 (m,2H),1.40(m,4H).
MS(EI):m/z calcd for C30H31NO2S:469.6;found:469.2
5) synthesis of compound 5 shown in formula
The compound 4 of 0.50g, that is, 1.00mmol is dissolved in the THF that 10ml steams again, it is cooling with liquid nitrogen under nitrogen protection To -78 DEG C, at the temperature and nitrogen protection, n-BuLi is slowly added dropwise into the THF solution steamed for being dissolved in compound 4 again (2.2mL, 2.00mmol) after adding, stirs 1h at such a temperature, then adds dropwise the steaming again of the i.e. 3.60mmol of 0.26g DMF, 1h is stirred to react at -78 DEG C, is then gradually heated to room temperature, reacts 1h;It is terminated after completion of the reaction with deionized water Reaction, is extracted with ethyl acetate, by organic phase extracted with anhydrous MgSO4It is dried overnight, then filters, revolving removes acetic acid Ethyl ester, by gained crude product pillar layer separation, wherein petroleum ether: the volume ratio of acetone is 5:1, obtains Red oil after dry Liquid 5, yield 74%.
It is as follows to the Measurement results of red oil 5:
1H NMR (400MHz, Acetone) δ 9.87 (s, 1H), 7.84 (d, J=3.9Hz, 1H), 7.53 (d, J= 11.9Hz, 1H), 7.35 ((t, J=7.6Hz, 4H), 7.24 (d, J=3.9Hz, 1H), 7.21 (d, J=11.9Hz, 1H), 7.15 (m, 6H), 7.08 (d, J=8.8Hz, 1H), 6.79 (d, J=8.8Hz, 1H), 6.80 (s, 1H), 3.88 (t, J= 6.3Hz, 2H), 3.55 (q, J=6.0Hz, 2H), 3.38 (t, J=5.2Hz, 1H), 1.80 (m, 2H), 1.62 (m, 2H), 1.35 (m,4H).
MS(MALDI-TOF):m/z(M+,C31H31NO3S):calcd:497.6;found:497.2
6) synthesis of compound 6
In N2In protection, the compound 5 of 0.5g, that is, 1.0mmol is dissolved in the DMF solution of 10ml, is by 1.37g The tert-butyl diphenyl chlorosilane of 5mmol and the 0.374 i.e. imidazoles of 5.5mmol are added in above-mentioned solution.By mixture in room temperature For 24 hours, after completion of the reaction, a little deionized water is added, and be extracted with ethyl acetate in lower stirring, by organic phase extracted with anhydrous MgSO4It being dried overnight, then filters, revolving removes ethyl acetate, by gained crude product pillar layer separation, wherein petroleum ether: The volume ratio of acetone is 30:1, obtains dark yellow solid 6, yield 82% after dry.
It is as follows to the Measurement results of dark yellow solid 6:
1H NMR (400MHz, Acetone) δ 9.86 (s, 1H), 7.80 (d, J=3.9Hz, 1H), 7.70 (d, J= 6.9Hz, 4H), 7.53 (d, J=15.9Hz, 1H), 7.41 (t, J=7.2Hz, 4H), 7.32 (t, J=7.8 Hz, 4H), 7.26 (d, J=3.9Hz, 1H), 7.21 (d, J=16.0Hz, 1H), 7.15 (m, 6H), 7.06 (t, J=7.3Hz, 2H), 6.75 (d, J =8.8Hz, 1H), 6.60 (d, J=8.8Hz, 1H), 6.56 (s, 1H), 3.85 (t, J=6.3Hz, 2H), 3.72 (t, J= 6.3Hz,2H),1.76(m,2H),1.62(m,2H),1.38 (m,4H),1.03(s,9H).
MS(MALDI-TOF):m/z(M+,C47H49NO3SSi):calcd:736.0;found:736.3
7) compound 7 is the synthesis of 3- hydroxy-3-methyl -2- butanone
The 98wt% concentrated sulfuric acid of 19ml is slowly mixed together with 100ml water, the mercury oxide of 13g yellow is then added, in 1.5h It is interior, the 2- methyl -3- butyne-2-alcohol of 84g, that is, 1.0mol is added dropwise into 65-75 DEG C of the sulfuric acid solution containing mercury oxide, then exists It is stirred to react 30min at 65-75 DEG C, is cooled to room temperature after completion of the reaction, reaction gains are filtered, filtered filtrate It is extracted with 20mL ether, extraction is three times.Organic phase extracted is washed with water, sodium bicarbonate solution respectively, organic after washing It is mutually dry with anhydrous magnesium sulfate, it then filters, filtered filtrate is distilled after concentrated by rotary evaporation, collects 140 DEG C of fractions, is done The light yellow liquid that 45.6g is obtained after dry is compound 7, yield: 32.2%.
8) compound 8 is 2,2- dicyano methene base -3- cyano -4,5, the conjunction of 5- trimethyl furans electronics, that is, TCF receptor At
The metallic sodium of 1.5g, that is, 0.065mol is dissolved in the dehydrated alcohol of 190ml, is added 6.7ml, that is, 0.064mol's Then 20h is stirred at room temperature in the compound 6 and the 8.5g i.e. malononitrile of 0.13mol that step 7) obtains, revolving removes ethyl alcohol, The water of 50ml is added after to revolving in resulting crude product, is then 4~5 with 6mol/l hydrochloric acid solution tune pH value, is precipitated a large amount of Sepia grease;It after sufficiently being washed the grease with water, then twice with ethyl alcohol recrystallization, then dries, obtains 4.5g's Pale yellow solid is compound 8, yield 35%.
9) synthesis of compound CL
It is anhydrous that the receptor TCF of the compound 6 of 0.28g, that is, 0.38mmol and 0.083g, that is, 0.42mmol is dissolved in 10ml In ethyl alcohol, in 75 DEG C of reflux 6h, it is cooled to room temperature after completion of the reaction, revolving removes ethyl alcohol, by gained crude product pillar layer separation, Wherein petrol ether/ethyl acetate=6:1 obtains blue solid powder compounds CL, yield 33% after dry.
The Measurement results of compound CL are as follows:
1H NMR(400MHz,CDCl3) δ 7.77 (d, J=15.6Hz, 2H), 7.65 (d, J=7.8,4H), 7.41 (d, J =15.8Hz, 2H), 7.36 (d, J=7.3Hz, 4H), 7.34 (d, J=3.6Hz, 2H), 7.28 (m, 6H), 7.13 (d, J= 7.7Hz, 4H), 7.08 (t, J=7.3Hz, 2H), 6.99 (d, J=8.0Hz, 1H), 6.59 (d, J=8.0Hz, 1H), 6.57 (s, 1H), 3.82 (t, J=6.6Hz, 2H), 3.66 (t, J=6.4Hz, 2H), 1.76 (m, 2H), 1.72 (s, 6H), 1.60 (m, 6H),1.03(s,9H).
MS(MALDI-TOF):m/z(M+,C58H56N4O3SSi):calcd:917.2;found:917.4
What is obtained is had by the organic second order non-linear optical chromophore molecule with D- π-A structure of flexible branched modified Good thermal stability;Have in the nonpolar solvents such as acetone, chloroform or ethyl alcohol isopolarity solvent and ether, six alkane of epoxy good Good dissolubility.
Embodiment 2
A kind of preparation of thin polymer film, the method is as follows:
0.075 gram of unformed polycarbonate, that is, APC is added in 1.00mL methylene bromide, stirring 3~5h to APC is complete After fully dissolved, organic second order non-linear optical chromophore compound CL synthesized by 0.025 gram of embodiment 1 is added, obtains organic The mixed solution of second-order nonlinear optical chromophore compound and APC, by obtained mixed solution with rotation on ito glass substrate Coating film, control revolving speed are 800~1200 turns/min, and then drying for 24 hours, is polymerize in 60 DEG C of vacuum oven Object film I.The thickness of the polarized polymer thin film is between 2~4 μm.
Polarization and electro-optic coefficient measurement are carried out to synthesized thin polymer film
Corona polarizing is carried out to obtained thin polymer film I, poling temperature is 165 DEG C, and the polarization time is 10~20min, Polarizing voltage is controlled in 10000~12000V or so;Electro-optic coefficient (r33) pass through decaying total reflection, i.e. document attenuated Total reflection, ATR, referring to Yuan Bo, Cao Zhuangqi, Shen Qishun, et al., Real-time measurement for electro-optic coefficient of a poled-polymer film in ATR configuration,in Proceedings of SPIE-Optical Measurement and Nondestructive Testing:Techniques and Applications,Nov 8-Nov 10 2000,Beijing,China,2000,134- Method measurement in 138, the maximum electro-optic coefficient measured are 49pm/V.
Embodiment 3
A kind of preparation of the organic second order non-linear optical chromophore of flexible isolating base group modification, step is with embodiment 1, no It is with place:
Without step 6, gained chromophore molecule is as follows:
Compared with Example 1, in the present embodiment in the organic second order non-linear optical chromophore of flexible isolating base group modification Flexible isolating group be own hydroxyl, the end of the group is hydroxyl, though steric effect is not so good as the strong of big Silante terminated performance It is strong, but be connected in main polymer chain or side chain for chromophore using condensation reaction and provide possibility.
Embodiment 4
A kind of preparation of thin polymer film, the method is as follows:
0.075 gram of unformed polycarbonate, that is, APC is added in 1.00mL methylene bromide, stirring 3~5h to APC is complete After fully dissolved, organic second order non-linear optical chromophore compound CL-1 synthesized by 0.025 gram of embodiment 3 is added, is had The mixed solution of machine second-order nonlinear optical chromophore compound and APC uses obtained mixed solution on ito glass substrate Spin-coating method film, control revolving speed are 800~1200 turns/min, and then drying for 24 hours, is gathered in 60 DEG C of vacuum oven Close object film I.The thickness of the polarized polymer thin film is between 2~4 μm.
Polarization and electro-optic coefficient measurement are carried out to synthesized thin polymer film
Corona polarizing is carried out to obtained thin polymer film I, poling temperature is 145 DEG C, and the polarization time is 10~20min, Polarizing voltage is controlled in 10000~11000V or so;Electro-optic coefficient (r33) pass through decaying total reflection, i.e. document attenuated Total reflection, ATR, referring to Yuan Bo, Cao Zhuangqi, Shen Qishun, et al., Real-time measurement for electro-optic coefficient of a poled-polymer film in ATR configuration,in Proceedings of SPIE-Optical Measurement and Nondestructive Testing:Techniques and Applications,Nov 8-Nov 10 2000,Beijing,China,2000,134- Method measurement in 138, the maximum electro-optic coefficient measured are 37pm/V.
Comparative example 1
A kind of organic second order non-linear optical chromophore, structure are
Flexible isolating group is not included in the chromophore, therefore the macroscopic view that the chromophore is shown in the material is arc It can be only 16pm/V, well below macroscopical electro-optical activity of the chromophore in example 1 and example 3.
Conclusion: the organic second order non-linear optical chromophore in the present invention introduces flexible isolating group, and oxygen atom can The electron performance of donor is improved, branch can be improved to cooperate between the advantages such as the dissolubility of chromophore, and synergistic effect makes The impact of performance of its chromophore is optimal, and lacking to introduce, there is the flexible branch of oxygen atom to make chromophore in material in some aspects The different degrees of decrease of the electrooptic effect presented in material.The electricity of product of the invention in the solubility property and material for improving material Luminous effect etc. all has the effect of excellent.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.

Claims (10)

1. a kind of organic second order non-linear optical chromophore of flexible isolating base group modification, which is characterized in that have such as general formula I institute The structure shown:
Wherein, R1For the alkyl of C1~C20, the hydroxyalkyl of C1~C10, the C1~C10 protected by halogen atom hydroxyalkyl or by The hydroxyalkyl of C1~C10 of protected silane;
R2For methyl or trifluoromethyl;
R3For the alkyl or phenyl of C1~C20.
2. a kind of organic second order non-linear optical chromophore of flexible isolating base group modification according to claim 1, special Sign is that the silane in the hydroxyalkyl by protected silane is trimethyl silane, t-butyldimethyl silane, tert-butyl hexichol Base silane or dimethylphenylsilaneand.
3. a kind of organic second order non-linear optical chromophore of flexible isolating base group modification as described in claim 1~2 is any Preparation method, which comprises the steps of:
I) in anhydrous n,N-Dimethylformamide, Compounds of formula II, R0- X and Carbon Dioxide nak response, collection obtain general formula III compound;
Wherein, R0X is halogen atom, R in-X0For the alkyl of C1~C20 or the hydroxyalkyl of C1~C10;General formula II is as follows:
General formula III is as follows:
Wherein R1It is as defined above;
Ii compound of formula III, thenyl triphenylphosphine and the Cymag for) obtaining step i), react in anhydrous ether, Collection obtains compound of Formula IV, and formula of IV is as follows
Wherein R1It is as defined above;
Iii) compound of Formula IV that step ii) is obtained is mixed with the tetrahydrofuran steamed again after, under n-BuLi catalysis, with The n,N-Dimethylformamide reaction steamed again, collection obtain compounds of formula V, and formula of V is as follows
Wherein R1It is as defined above;
Iv compounds of formula V and 2,2- dicyano) are pitched into base -3- cyano -4- methyl -5-R2-5-R3Furans reacts in ethanol, Wherein R2And R3As defined above, collection obtains the organic second order non-linear optical chromophore of flexible isolating base group modification.
4. a kind of preparation of the organic second order non-linear optical chromophore of flexible isolating base group modification according to claim 3 Method, which is characterized in that specifically comprise the following steps:
1) under inert gas protection, by Compounds of formula II, R0- X and Anhydrous potassium carbonate are dissolved in anhydrous N,N-dimethylformamide In, stirring is warming up to 100~150 DEG C of 10~15h of reaction, and room temperature is down to after reaction, obtains solution A after deionized water is added;It is right Solution A is extracted, and is merged organic phase, is dried, filtered, and is rotated, pillar layer separation, obtains compound of formula III after dry;
2) compound of formula III, thenyl triphenylphosphine and Cymag are dissolved in anhydrous ether, it is stirred at room temperature 8~ For 24 hours, product is poured into after completion of the reaction and obtains solution B in ice water;Solution B is extracted, is dried, filtered, is rotated, column chromatography Separation obtains compound of Formula IV after dry;
3) compound of Formula IV is dissolved in the tetrahydrofuran steamed again and obtains solution C, be cooled to -70 under inert gas protection ~-80 DEG C, n-BuLi is added, obtains solution D after stirring 1~2h, the n,N-Dimethylformamide steamed again is added into solution D Solution E is obtained, is warmed to room temperature 20~40min of reaction again after stirring 1~2h;It is terminated and is reacted with deionized water after completion of the reaction, obtained To solution F;Solution F is extracted, is dried, filtered, is rotated, pillar layer separation, obtains compounds of formula V after dry;
4) compounds of formula V and 2,2- dicyano are pitched into base -3- cyano -4- methyl -5-R2-5-R3Furans, which is dissolved in ethyl alcohol, to be obtained Solution F is stirred at reflux 4~6h of reaction at 50~80 DEG C;It is cooled to room temperature, rotates after completion of the reaction, pillar layer separation obtains soft The organic second order non-linear optical chromophore of sexual isolation base group modification.
5. a kind of preparation of the organic second order non-linear optical chromophore of flexible isolating base group modification according to claim 4 Method, which is characterized in that in step 1), the inert gas is nitrogen, the Compounds of formula II, R0- X and Anhydrous potassium carbonate Molar ratio be 1~2.5:2~5:2.5~5;It is described extract the extractant that uses be ethyl acetate, chloroform, methylene chloride or Ether;The desiccant that the drying uses is anhydrous MgSO4Or Na2SO4
6. a kind of preparation of the organic second order non-linear optical chromophore of flexible isolating base group modification according to claim 4 Method, molar ratio 1:1:15~30 of compound of formula III described in step 2), thenyl triphenylphosphine and Cymag;Institute Stating the extractant that extraction uses is ethyl acetate, chloroform, methylene chloride or ether;The desiccant that the drying uses is anhydrous MgSO4Or Na2SO4
7. a kind of preparation of the organic second order non-linear optical chromophore of flexible isolating base group modification according to claim 4 Method, the solubility of solution C described in step 3) are 0.1~0.5mol/l, and the concentration of the solution D is 0.15~0.3mol/l, The concentration of the solution E is 0.25~0.6mol/l;The inert gas is nitrogen;The extractant used that extracts is acetic acid Ethyl ester, chloroform or methylene chloride.
8. a kind of preparation of the organic second order non-linear optical chromophore of flexible isolating base group modification according to claim 4 Method, step 4) formula of V compound and 2,2- dicyano pitch base -3- cyano -4- methyl -5-R2-5-R3The molar ratio of furans is 1~1.5:1.2~1.8.
9. a kind of organic second order non-linear optical chromophore of flexible isolating base group modification as described in claim 1 is in optical signal Modulate the application in material, which is characterized in that the optical signal modulation material passes through the organic second-order non-linear optical color development Group and the doping of unformed polycarbonate are prepared.
10. a kind of organic second order non-linear optical chromophore of flexible isolating base group modification according to claim 9 is answered With, which is characterized in that the mass ratio of the organic second order non-linear optical chromophore and unformed polycarbonate is 1:1~100.
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Application publication date: 20190201