CN104961113A - Method for preparing phosphaalkene - Google Patents
Method for preparing phosphaalkene Download PDFInfo
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- CN104961113A CN104961113A CN201510379948.7A CN201510379948A CN104961113A CN 104961113 A CN104961113 A CN 104961113A CN 201510379948 A CN201510379948 A CN 201510379948A CN 104961113 A CN104961113 A CN 104961113A
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Abstract
The invention discloses a method for preparing phosphaalkene. The method comprises the following steps: dispersing black phosphorus into a dispersion liquid, and performing ultrasonic treatment for 0.5-200 hours and then performing solid-liquid separation to obtain intercalation black phosphorus; dispersing the intercalation black phosphorus into a chemical foaming agent solution, performing ultrasonic treatment for 0.5-200 hours and then performing solid-liquid separation, and drying solids subjected to solid-liquid separation to obtain a solid mixture of black phosphorus and a chemical foaming agent; performing microwave treatment on the solid mixture of black phosphorus and the chemical foaming agent under the microwave powder of 100-1,000W, and preparing a finished product phosphaalkene after 1s-1h of microwave treatment. The phosphaalkene prepared by the method disclosed by the invention is proper and uniform in size; furthermore, the technology is simple, the cost is low, the peeling time is short, and the phosphaalkene yield is high; large-scale production is easy to realize.
Description
Technical field
The present invention relates to phosphorus alkene preparing technical field, particularly relate to a kind of method preparing phosphorus alkene.
Background technology
Phosphorus alkene is a kind of two-dirnentional structure material be made up of single or multiple lift phosphorus atom, and have excellent electrology characteristic, electronic mobility is up to 1000cm
2/ V.s, leakage current modulation rate is 10 of Graphene
4~ 10
5doubly, be the New Two Dimensional semiconductor material after Graphene, molybdenumdisulphide.Compared with Graphene, the great advantage of phosphorus alkene has energy gap, and the size of phosphorus alkene energy gap regulates by changing stacking phosphorous layer number, this makes phosphorus alkene be easy to carry out optical detection, and therefore the aspect such as phosphorus alkene ballistic transistor on the scene, electrooptical device, secondary cell has huge potential using value.
At present, existing phosphorus alkene preparation method mainly contains mechanically peel method and liquid phase stripping method, is all take black phosphorus as raw material.The subject matter of mechanically peel method is that preparation time is long, and output is few, cannot realize mass-producing preparation.And liquid phase stripping method at least has following shortcoming: (1) splitting time is long, the chance contacted with empty G&W is many, unstable product quality; (2) need to carry out long supersound process, which results in prepared phosphorus alkene size uneven, and the size of wherein a part of phosphorus alkene is very little, is difficult to carry out industrial application; (3) productive rate of phosphorus alkene is very low, generally lower than 1wt%, not yet breaks through technical bottleneck prepared by mass-producing so far.
Summary of the invention
For above-mentioned weak point of the prior art, the invention provides a kind of method preparing phosphorus alkene, not only prepared phosphorus alkene moderate dimensions and evenly, and technique is simple, with low cost, splitting time is short, phosphorus alkene productive rate is high, is easy to accomplish scale production.
The object of the invention is to be achieved through the following technical solutions:
Prepare a method for phosphorus alkene, comprise the steps:
Steps A, is dispersed in black phosphorus in dispersion liquid, and supersound process 0.5 ~ 200 hour, then carry out solid-liquid separation, thus obtain intercalation black phosphorus; Wherein, described dispersion liquid is at least one in inorganic acid solution, inorganic alkali solution, salts solution, organic solution or ionic liquid;
Step B, is dispersed in intercalation black phosphorus in chemical foaming agent solution, and supersound process 0.5 ~ 200 hour, then carry out solid-liquid separation, then drying is carried out to the solid after solid-liquid separation, thus obtain the solid mixture of black phosphorus and chemical foaming agent; Wherein, the intercalation black phosphorus of 0.1 ~ 100mg is disperseed in every milliliter of chemical foaming agent solution;
Step C, carries out microwave treatment to the solid mixture of black phosphorus and chemical foaming agent, and microwave power is 100 ~ 1000W, in microwave treatment after 1 second ~ 1 hour, i.e. and obtained finished product phosphorus alkene.
Preferably, described chemical foaming agent solution is mixed by chemical foaming agent and lysate; Wherein, described chemical foaming agent is at least one in Whitfield's ointment, bicarbonate of ammonia, volatile salt, ammonium nitrate, azo compound, perchlorate compounds, azide compounds or hydrazide kind compound;
Described lysate is water, methyl alcohol, ethanol, acetone, N-Methyl pyrrolidone, N, at least one in N '-dimethyl methane amide, dimethyl sulfoxide (DMSO), NSC 11801, propylene carbonate, acetonitrile, methylene dichloride, ethylene dichloride, propylene dichloride, trichloromethane, trichloroethane, tetrahydrofuran (THF), phenyl ether, benzene,toluene,xylene, hexane or hexanaphthene.
Preferably, in step, first in dispersion liquid, add additive, then black phosphorus is dispersed in dispersion liquid; Wherein, described additive is ionogenic surfactant, nonionic surface active agent or at least one had in the compound of profit parents character.
Preferably, described black phosphorus is normal black phosphorus, at least one in oxidized black phosphorus or the black phosphorus that is etched, and phosphorus content is at least 70% (weight percentage).
Preferably, described inorganic acid solution is at least one in dilute sulphuric acid, dilute hydrochloric acid, dust technology or dilute phosphoric acid, and its concentration is 0.001 ~ 5mol/L, and pH value is 0.1 ~ 7.
Preferably, described inorganic alkali solution is at least one in lithium hydroxide, sodium hydroxide or potassium hydroxide, and its concentration is 0.001 ~ 5mol/L, and pH value is 7 ~ 12.
Preferably, described salts solution is LiBF
4, LiClO
3, LiAsF
6, LiClO
4, LiPF
6, LiCl, Li
2cO
3, Li
2sO
4, NaCl, NaClO
3, NaOH, Na
2cO
4, NaClO
4, NaBF
4, NaAsF
6, NaPF
6, KCl, KClO
3, KOH, K
2cO
3, K
2sO
4, KClO
4, K
2sO
3, KNO
3or at least one in quaternary ammonium salt ionic compound.
Preferably, described organic solution is methyl alcohol, ethanol, acetone, N-Methyl pyrrolidone, N, at least one in N '-dimethyl methane amide, dimethyl sulfoxide (DMSO), NSC 11801, propylene carbonate, acetonitrile, methylene dichloride, ethylene dichloride, propylene dichloride, trichloromethane, trichloroethane, tetrahydrofuran (THF), phenyl ether, benzene,toluene,xylene, hexane or hexanaphthene.
Preferably, described ionic liquid is at least one in glyoxaline ion liquid, pyridine ionic liquid or pyrrole ionic liquid.
As seen from the above technical solution provided by the invention, black phosphorus is first prepared into intercalation black phosphorus by the method for what the embodiment of the present invention provided prepare phosphorus alkene, again intercalation black phosphorus is prepared into the solid mixture of black phosphorus and chemical foaming agent, add the gap between black phosphorus intercalation by the process of these two steps, make black phosphorus intercalation more easily form phosphorus alkene; Then by carrying out microwave treatment to the solid mixture of black phosphorus and chemical foaming agent, the finished product phosphorus alkene of obtained individual layer to 30 layer, lamellar spacing is 0.5 ~ 15nm, and size is between 50 ~ 4000nm.As can be seen here, the phosphorus alkene moderate dimensions prepared by the present invention and evenly, and also technique is simple, with low cost, splitting time is short, phosphorus alkene productive rate is high, is easy to accomplish scale production.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Below the method preparing phosphorus alkene provided by the present invention is described in detail.
Prepare a method for phosphorus alkene, comprise the steps:
Steps A, prepares intercalation black phosphorus: be dispersed in dispersion liquid by black phosphorus, and supersound process 0.5 ~ 200 hour, then carry out solid-liquid separation, thus obtain intercalation black phosphorus.
Wherein, described black phosphorus can adopt at least one in normal black phosphorus, oxidized black phosphorus or the black phosphorus that is etched, and phosphorus content is at least 70% (percentage), in actual applications, the spacing of black phosphorus sheet interlayer is preferably 0.4 ~ 2nm, this can facilitate the formation of intercalation black phosphorus, and creates favorable conditions for preparing phosphorus alkene.Described dispersion liquid can be at least one in inorganic acid solution, inorganic alkali solution, salts solution, organic solution or ionic liquid; Inorganic acid solution is inorganic aqueous acid, can adopt at least one in dilute sulphuric acid, dilute hydrochloric acid, dust technology or dilute phosphoric acid, and its concentration is preferably 0.001 ~ 5mol/L, and pH value is 0.1 ~ 7; Inorganic alkali solution is the aqueous solution of mineral alkali, can adopt at least one in lithium hydroxide, sodium hydroxide or potassium hydroxide, and its concentration is preferably 0.001 ~ 5mol/L, and pH value is 7 ~ 12; Salts solution can adopt LiBF
4, LiClO
3, LiAsF
6, LiClO
4, LiPF
6, LiCl, Li
2cO
3, Li
2sO
4, NaCl, NaClO
3, NaOH, Na
2cO
4, NaClO
4, NaBF
4, NaAsF
6, NaPF
6, KCl, KClO
3, KOH, K
2cO
3, K
2sO
4, KClO
4, K
2sO
3, KNO
3or the aqueous solution of at least one in quaternary ammonium salt ionic compound; Organic solution can adopt methyl alcohol, ethanol, acetone, N-Methyl pyrrolidone, N, at least one in N '-dimethyl methane amide, dimethyl sulfoxide (DMSO), NSC 11801, propylene carbonate, acetonitrile, methylene dichloride, ethylene dichloride, propylene dichloride, trichloromethane, trichloroethane, tetrahydrofuran (THF), phenyl ether, benzene,toluene,xylene, hexane or hexanaphthene; Ionic liquid can adopt at least one in glyoxaline ion liquid, pyridine ionic liquid or pyrrole ionic liquid.
Particularly, in dispersion liquid, first can add additive, then black phosphorus is dispersed in dispersion liquid, these additives can with dispersion liquid together intercalation in black phosphorus, thus increase the gap of intercalation black phosphorus, make it more easily to form phosphorus alkene; Additive can adopt ionogenic surfactant of the prior art, nonionic surface active agent or at least one had in the compound of profit parents character; Can determine according to the actual requirements the need of adding additive in dispersion liquid.The dispersion liquid adding black phosphorus can be put in the Vltrasonic device of prior art and carry out by supersound process, and the ultrasonic frequency of Vltrasonic device is preferably 15Hz, power density is preferably 100w, the time of supersound process can be 0.01 ~ 200 hour, but be preferably 0.5 ~ 100 hour, this can make dispersion liquid and black phosphorus in ultrasonic middle vibrating dispersion, extremely contributes to dispersion liquid and is inserted in black phosphorus and forms intercalation black phosphorus.Solid-liquid separation can adopt filtration method of the prior art or centrifugal separation, in actual applications, preferably adopt deionized water to carry out several washing to the solid that solid-liquid separation obtains, then adopt existing dry technology to be dried to constant weight, thus obtain dry solid intercalation black phosphorus.
Step B, prepare the solid mixture of black phosphorus and chemical foaming agent: be dispersed in by intercalation black phosphorus in chemical foaming agent solution, and supersound process 0.5 ~ 200 hour, carry out solid-liquid separation again, then drying is carried out to the solid after solid-liquid separation, thus obtain the solid mixture of black phosphorus and chemical foaming agent.
Wherein, the intercalation black phosphorus of 0.1 ~ 100mg is preferably disperseed in every milliliter of chemical foaming agent solution.Described chemical foaming agent solution can be mixed by chemical foaming agent and lysate, chemical foaming agent can adopt Whitfield's ointment, bicarbonate of ammonia, volatile salt, ammonium nitrate, azo compound (such as: Cellmic C 121, Diisopropyl azodicarboxylate, diisopropyl azodiformate, diethyl azodiformate, P-aminoazobenzene, Barium azodicarboxylate etc.), perchlorate compounds (such as: ammoniumper chlorate, potassium perchlorate, sodium perchlorate etc.), azide compounds (such as: phenylazide, nitrine benzophenone etc.) or hydrazide kind compound is (such as: 4, 4 '-disulfonyl hydrazide diphenyl ether, to benzol sulfohydrazide, 3, 3 '-disulfonyl hydrazide sulfobenzide, 4, 4 '-two benzene disulfohydrazide, 1, 3-benzene disulfohydrazide, 1, 4-benzene disulfohydrazide etc.) at least one, lysate can adopt water, methyl alcohol, ethanol, acetone, N-Methyl pyrrolidone, N, at least one in N '-dimethyl methane amide, dimethyl sulfoxide (DMSO), NSC 11801, propylene carbonate, acetonitrile, methylene dichloride, ethylene dichloride, propylene dichloride, trichloromethane, trichloroethane, tetrahydrofuran (THF), phenyl ether, benzene,toluene,xylene, hexane or hexanaphthene.
Particularly, the chemical foaming agent solution adding black phosphorus can be put in the Vltrasonic device of prior art and carry out by supersound process, and the ultrasonic frequency of Vltrasonic device is preferably 15Hz, power density is preferably 100w, the time of supersound process is preferably 0.5 ~ 100 hour, this can make chemical foaming agent and black phosphorus in ultrasonic middle vibrating dispersion, extremely contributes to chemical foaming agent and is inserted in black phosphorus and forms intercalation black phosphorus.Solid-liquid separation can adopt filtration method of the prior art or centrifugal separation.One or more that can adopt in air stream drying of the prior art, spraying dry, fluidised bed drying, rotary flashing drying, infrared drying, microwave drying or lyophilize dry.Give an example: in this step, 100mg intercalation black phosphorus can be scattered in 5 ~ 500ml chemical foaming agent solution, and carry out ultrasonic vibration and obtain suspension liquid, again suspension liquid is placed in existing whizzer with the rotating speed centrifugal treating 0.01 ~ 10h of 100 ~ 50000rpm, after discarding supernatant liquid, carry out washing the dry solid mixture that just can obtain black phosphorus and chemical foaming agent to isolated solid.
Step C, microwave treatment prepares phosphorus alkene: carry out microwave treatment to the solid mixture of black phosphorus and chemical foaming agent, and microwave power is 100 ~ 1000W, in microwave treatment after 1 second ~ 1 hour, i.e. obtained finished product phosphorus alkene.
Particularly, preferably under vacuum or inert gas environment, carry out microwave treatment to the solid mixture of black phosphorus and chemical foaming agent, this can promote productive rate and the purity of finished product phosphorus alkene.Test under finished product phosphorus alkene obtained in step C is placed in electron microscope and FT-Raman and confocal Raman instrument, its result shows: this phosphorus alkene is the phosphorus alkene of individual layer to 30 layer, lamellar spacing is 0.5 ~ 15nm, size between 50 ~ 4000nm, the phosphorus alkene moderate dimensions namely prepared by the embodiment of the present invention and evenly, lamella is thin.
As fully visible, the method preparing phosphorus alkene that the embodiment of the present invention provides at least possesses following advantage:
(1) embodiment of the present invention adopts microwave treatment to prepare phosphorus alkene, not only safety, simple, low cost, and environmental protection, efficiency is fast, productive rate is high, is easy to the large-scale production realizing phosphorus alkene.
(2) raw material adopted as can be seen from the invention described above embodiment and equipment, the requirement of the embodiment of the present invention to equipment and material is lower, therefore, it is possible to controlled working cost well.
(3) the phosphorus alkene moderate dimensions prepared by the embodiment of the present invention and evenly, lamella is thin, and pass through the treatment time of supersound process in set-up procedure A and step B, and treatment time of microwave treatment in step C, can realize controling effectively to the number of plies of prepared phosphorus alkene and size, this can meet the form demand of different application field for phosphorus alkene, and therefore prepared by the present invention, phosphorus alkene can be widely used in the multiple fields such as transistor, sensor, solar cell, battery electrode.
In order to the technique effect more clearly showing technical scheme provided by the present invention and produce, with a few specific embodiment, the method preparing phosphorus alkene that the embodiment of the present invention provides is described in detail below.
Embodiment 1
In 100ml beaker, add 20mL dilute phosphoric acid, and add 0.01g black phosphorus wherein, then this flask is placed in Vltrasonic device and carries out supersound process, ultrasonic frequency is 15Hz, and power density is 100w, and the treatment time is 72h, obtains intercalation black phosphorus dispersion liquid; After supersound process completes, intercalation black phosphorus dispersion liquid is filtered, and with deionized water to filtering the solids wash several obtained, then in 50 DEG C of vacuum, being dried to constant weight, thus obtaining solid intercalation black phosphorus.
Getting 100mg above-mentioned solid intercalation black phosphorus, to join 20mL concentration be in the ammoniumper chlorate of 0.05g/mL, and be again placed in Vltrasonic device and carry out supersound process, ultrasonic vibration dispersion 72h, ultrasonic frequency 15Hz, power density 100w, then the suspension liquid centrifugation 10min at 3,000 rpm will obtained, after discarding supernatant liquid, obtains black phosphorus and ammoniumper chlorate solid mixture to isolated solid after carrying out washing drying.
Carry out microwave heating treatment to above-mentioned black phosphorus and ammoniumper chlorate solid mixture, microwave power is 800W, and microwave treatment time is 5min, thus obtain the phosphorus alkene of less than 20 layers, lamellar spacing is 0.5 ~ 10nm, and size is between 50 ~ 500nm, and the productive rate of phosphorus alkene is 71%.
Embodiment 2
In 100ml beaker, add the DMF of 20mL, and add 0.05g black phosphorus wherein, then this flask is placed in Vltrasonic device and carries out supersound process, ultrasonic frequency is 15Hz, and power density is 100w, treatment time is 72h, obtains intercalation black phosphorus dispersion liquid; After supersound process completes, intercalation black phosphorus dispersion liquid is filtered, and with dehydrated alcohol to filtering the solids wash several obtained, then in 50 DEG C of vacuum, being dried to constant weight, obtaining solid intercalation black phosphorus.
Getting 100mg above-mentioned solid intercalation black phosphorus, to join 20mL concentration be in the P-aminoazobenzene ethanolic soln of 0.05g/mL, and be again placed in Vltrasonic device and carry out supersound process, ultrasonic vibration dispersion 48h, ultrasonic frequency 15Hz, power density 100w, then the suspension liquid centrifugation 10min at 3,000 rpm will obtained, after discarding supernatant liquid, obtains black phosphorus and P-aminoazobenzene solid mixture to isolated solid after carrying out washing drying.
Carry out microwave heating treatment to above-mentioned black phosphorus and P-aminoazobenzene solid mixture, microwave power is 800W, and microwave treatment time is 3min, thus obtain the phosphorus alkene of less than 30 layers, lamellar spacing is 1.5 ~ 13nm, and size is between 100 ~ 1000nm, and the productive rate of phosphorus alkene is 77%.
Embodiment 3
The NaPF of 0.5mol/L is added in 100ml beaker
6in the aqueous solution, and add 0.1g black phosphorus wherein, then this flask is placed in Vltrasonic device and carries out supersound process, ultrasonic frequency is 15Hz, and power density is 100w, and the treatment time is 24h, obtains intercalation black phosphorus dispersion liquid; After supersound process completes, intercalation black phosphorus dispersion liquid is filtered, and with deionized water to filtering the solids wash several obtained, then in 50 DEG C of vacuum, being dried to constant weight, thus obtaining solid intercalation black phosphorus.
Get 100mg above-mentioned solid intercalation black phosphorus join 20mL concentration be 0.05g/mL in benzol sulfohydrazide ethanolic soln, and be again placed in Vltrasonic device and carry out supersound process, ultrasonic vibration dispersion 48h, ultrasonic frequency 15Hz, power density 100w, then the suspension liquid centrifugation 10min at 3,000 rpm will obtained, after discarding supernatant liquid, obtains black phosphorus and to benzol sulfohydrazide solid mixture to isolated solid after carrying out washing drying.
Carry out microwave heating treatment to above-mentioned black phosphorus with to benzol sulfohydrazide solid mixture, microwave power is 800W, and microwave treatment time is 10min, obtain the phosphorus alkene of less than 30 layers, lamellar spacing is 2 ~ 15nm, and size is between 500 ~ 3000nm, and the productive rate of phosphorus alkene is 78%.
As fully visible, the phosphorus alkene moderate dimensions that the embodiment of the present invention is not only prepared and evenly, and also technique is simple, with low cost, splitting time is short, phosphorus alkene productive rate is high, is easy to accomplish scale production.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1. prepare a method for phosphorus alkene, it is characterized in that, comprise the steps:
Steps A, is dispersed in black phosphorus in dispersion liquid, and supersound process 0.5 ~ 200 hour, then carry out solid-liquid separation, thus obtain intercalation black phosphorus; Wherein, described dispersion liquid is at least one in inorganic acid solution, inorganic alkali solution, salts solution, organic solution or ionic liquid;
Step B, is dispersed in intercalation black phosphorus in chemical foaming agent solution, and supersound process 0.5 ~ 200 hour, then carry out solid-liquid separation, then drying is carried out to the solid after solid-liquid separation, thus obtain the solid mixture of black phosphorus and chemical foaming agent; Wherein, the intercalation black phosphorus of 0.1 ~ 100mg is disperseed in every milliliter of chemical foaming agent solution;
Step C, carries out microwave treatment to the solid mixture of black phosphorus and chemical foaming agent, and microwave power is 100 ~ 1000W, in microwave treatment after 1 second ~ 1 hour, i.e. and obtained finished product phosphorus alkene.
2. the method preparing phosphorus alkene according to claim 1, is characterized in that, described chemical foaming agent solution is mixed by chemical foaming agent and lysate;
Wherein, described chemical foaming agent is at least one in Whitfield's ointment, bicarbonate of ammonia, volatile salt, ammonium nitrate, azo compound, perchlorate compounds, azide compounds or hydrazide kind compound;
Described lysate is water, methyl alcohol, ethanol, acetone, N-Methyl pyrrolidone, N, at least one in N '-dimethyl methane amide, dimethyl sulfoxide (DMSO), NSC 11801, propylene carbonate, acetonitrile, methylene dichloride, ethylene dichloride, propylene dichloride, trichloromethane, trichloroethane, tetrahydrofuran (THF), phenyl ether, benzene,toluene,xylene, hexane or hexanaphthene.
3. the method preparing phosphorus alkene according to claim 1 and 2, is characterized in that, in step, first in dispersion liquid, adds additive, then is dispersed in dispersion liquid by black phosphorus; Wherein, described additive is ionogenic surfactant, nonionic surface active agent or at least one had in the compound of profit parents character.
4. the method preparing phosphorus alkene according to claim 1 and 2, is characterized in that, described black phosphorus is normal black phosphorus, at least one in oxidized black phosphorus or the black phosphorus that is etched, and phosphorus content is at least 70% (weight percentage).
5. the method preparing phosphorus alkene according to claim 1 and 2, is characterized in that, described inorganic acid solution is at least one in dilute sulphuric acid, dilute hydrochloric acid, dust technology or dilute phosphoric acid, and its concentration is 0.001 ~ 5mol/L, and pH value is 0.1 ~ 7.
6. the method preparing phosphorus alkene according to claim 1 and 2, is characterized in that, described inorganic alkali solution is at least one in lithium hydroxide, sodium hydroxide or potassium hydroxide, and its concentration is 0.001 ~ 5mol/L, and pH value is 7 ~ 12.
7. the method preparing phosphorus alkene according to claim 1 and 2, is characterized in that, described salts solution is LiBF
4, LiClO
3, LiAsF
6, LiClO
4, LiPF
6, LiCl, Li
2cO
3, Li
2sO
4, NaCl, NaClO
3, NaOH, Na
2cO
4, NaClO
4, NaBF
4, NaAsF
6, NaPF
6, KCl, KClO
3, KOH, K
2cO
3, K
2sO
4, KClO
4, K
2sO
3, KNO
3or at least one in quaternary ammonium salt ionic compound.
8. the method preparing phosphorus alkene according to claim 1 and 2, it is characterized in that, described organic solution is methyl alcohol, ethanol, acetone, N-Methyl pyrrolidone, N, at least one in N '-dimethyl methane amide, dimethyl sulfoxide (DMSO), NSC 11801, propylene carbonate, acetonitrile, methylene dichloride, ethylene dichloride, propylene dichloride, trichloromethane, trichloroethane, tetrahydrofuran (THF), phenyl ether, benzene,toluene,xylene, hexane or hexanaphthene.
9. the method preparing phosphorus alkene according to claim 1 and 2, is characterized in that, described ionic liquid is at least one in glyoxaline ion liquid, pyridine ionic liquid or pyrrole ionic liquid.
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