A kind of diaryl neighbour carborane derivative and preparation method thereof, application
Technical field
The present invention relates to a kind of diaryl neighbour carborane derivative and preparation method thereof, application, belong to nonlinear optics material
Expect technical field.
Background technology
With the development of modern information technologies, nonlinear optics (NLO) is with it in low cost, high-performance photoelectric communication equipment
The application of aspect, it has also become one of research field the most active, seeking research has strong second nonlinear optic response
New compound is also the study hotspot in this field.Nonlinear optical material is widely used in laser frequency conversion, four ripples mix
Frequently, light beam steering, image amplification, optical information processing, optical storage, optical-fibre communications, underwater communication, laser countermeasure (s) and nuclear fusion etc. are ground
Study carefully field.Wherein, nonlinear optical organic (NLO) material is obtained due to that can carry out flexible structure design on a molecular scale
To larger NLO responses and other specific photoelectric properties, the extensive interest of people is caused in recent years.
The miscellaneous borine of carbon is a kind of polyhedron caged borane clusters, by one or more top on carbon atom substitution boron cage
Point atom is formed.Wherein carborane and its derivative have special molecular structure and unique physico-chemical property, in many fields
There is preferable application prospect.Wherein adjacent carborane has the structure (structural formula is as follows) of regular dodecahedron, has heat steady
Qualitative good, the features such as modifiability is good, application prospect is good.
Nonlinear optical effect results from the photoelectricity physical behavio(u)r under excitation state, and the NLO responses of organic molecule are originating from altogether
The delocalization characteristic of pi-electron in yoke electronic structure, increase conjugated electrons bridge can improve second-order NLO coefficient and respond, the bigger delocalization of conjugated system,
Pi-electron more easily excites, the easier generation of nonlinear optical effect, and the electronic donor group by changing aryl branch can make
Its nonlinear optical response strengthens.Diaryl neighbour's carborane analog derivative have three-dimensional armaticity, empty p tracks electron deficient,
A large amount of polarizable electronics of height delocalization, it is easy to unique property such as functionalization, chemistry and optical stability, and has in ultra-violet (UV) band
The transparency well, diaryl neighbour carborane derivative may have preferable nonlinear optical effect, to diaryl neighbour's carbon boron
The research of the non-linear optical property of alkane derivatives has great importance.
The content of the invention
It is an object of the invention to provide a kind of good diaryl neighbour's carborane derivative of non-linear optical property.
It is another object of the present invention to provide a kind of preparation method of above-mentioned diaryl neighbour carborane derivative and answer
With.
To achieve the above object, the technical scheme of diaryl neighbour's carborane derivative of the invention is:
A kind of diaryl neighbour carborane derivative, there is the structure as shown in formula (Ι):
Wherein, R1、R2、R3Separately it is selected from H, F, I, CO2Et, aminocarbazole base, carbazyl phenyl, triaryl ammonia
Base or halo triaryl amino.
Diaryl neighbour's carborane derivative of the present invention has good non-linear optical property, has larger polarizability β
Value.
Preferably, R1Selected from H, F, I, CO2Et, aminocarbazole base, carbazyl phenyl, triaryl amino or halo triaryl
Amino, R2、R3It is H.Or R2Selected from H, F, I, CO2Et, aminocarbazole base, carbazyl phenyl, triaryl amino or the virtue of halo three
Base amino, R1、R3It is H.Or R3Selected from H, F, I, CO2Et, aminocarbazole base, carbazyl phenyl, triaryl amino or halo three
Arylamino, R1、R2It is H.
Preferably, above-mentioned aminocarbazole base is 9- (3,6- diaminourea) carbazyl.
Preferably, above-mentioned carbazyl phenyl is one kind in 4- (9- carbazyls) phenyl, 3- (9- carbazyls) phenyl.
Preferably, the triaryl amino is:
Preferably, halo triaryl amino is the halides of the substituent shown in formula II.
Preferably, the diaryl neighbour carborane derivative is selected from:
The technical scheme of the preparation method of diaryl neighbour's carborane derivative of the present invention is as follows:
The preparation method of above-mentioned diaryl neighbour's carborane derivative, comprises the following steps:
Decaborane Lewis alkali complex compound, diaryl alkynes, catalyst are well mixed in a solvent, at 80 DEG C~140 DEG C
4h~24h is reacted, adds quencher to be quenched, solvent is removed, produces.
After removing solvent, recrystallized with n-hexane.After being recrystallized with n-hexane, the pure of product can be further improved
Degree.
The catalyst is [BMIM] AuCl4。
The decaborane Lewis alkali complex compound is B10H12(CH3CN)2、B10H12(CH3CH2=CHCN)2、B10H12
(Et2S)2、B10H12(Ph3P)2、B10H12(Ph2PN3)2、B10H12(Ph2PH)2、B10H12(Ph2POH)2、B10H12(Ph2PCl)2、
B10H12(Bu3P)2In one kind.
The solvent is one kind in toluene, dimethylbenzene, n-butyl ether.Solvent can provide good reaction ring for reaction
Border, be advantageous to improve reaction efficiency.
The quencher is one kind in methanol, ethanol, isopropanol, n-butanol.
Diaryl alkynes, the mass ratio of catalyst are 1:0.01~0.05.Decaborane Lewis alkali complex compound, diaryl alkynes
The mol ratio of hydrocarbon is 1:1~3.Decaborane Lewis alkali complex compound, solvent, the mass ratio of quencher are 1:10~13:0.5~1.
Crude product is obtained after removing solvent, gained crude product is 1 with n-hexane mass ratio:3~5.
The technical scheme of the application of diaryl neighbour's carborane derivative of the present invention is as follows:
A kind of application of above-mentioned diaryl neighbour carborane derivative in terms of nonlinear optical material.
The beneficial effects of the invention are as follows:
Diaryl neighbour's carborane derivative of the present invention has good nonlinear optics (NLO) property, has larger pole
Rate β value, it is maximum up to 341.44 × 10-30Esu, it can be applied to nonlinear optical material.
Embodiment
Embodiments of the present invention are described further below.
It is as follows to prepare reaction principle for diaryl neighbour carborane derivative in example below:
R1、R2、R3Separately it is selected from H, F, I, CO2Et, aminocarbazole base, carbazyl phenyl, triaryl amino or halogen
For triaryl amino.
Embodiment 1
The diaryl neighbour carborane derivative of the present embodiment has the structure as shown in formula (1):
Diaryl neighbour's carborane derivative preparation method of the present embodiment specifically comprises the following steps:
2.7g [BMIM] AuCl is added in the three-necked flask with condensation reflux unit at room temperature4It is molten with 1036mL
Agent toluene, is stirred, and 90g (0.3mol) B is added into mixed system10H12(Et2S)2With the 3 of 101.7g (0.3mol),
4-(EtCO2)2C6H3C ≡ CPhF (structural formula is as follows), then react 6h by mixture at 110 DEG C, then add 56.8mL's
Reaction is quenched in methanol, and rotation removes solvent, obtains crude product;Crude product is recrystallized with 349.5g n-hexanes as solvent, obtains chemical combination
Thing 116.6g.
Reaction principle is as follows:
By testing and calculating, the purity of gained compound (1) is 99.6%, yield 85%, MS:[M+1]:458;
Anal.Calcd for C20H27B10O4F:C 52.56, H 5.95;Found C 52.55, H 5.94.
Embodiment 2
The diaryl neighbour carborane derivative of the present embodiment has the structure as shown in formula (2):
Diaryl neighbour's carborane derivative preparation method of the present embodiment specifically comprises the following steps:
5.4g [BMIM] AuCl is added in the three-necked flask with condensation reflux unit at room temperature4It is molten with 720mL
Agent toluene, is stirred, and 60g (0.2mol) B is added into mixed system10H12(Et2S)2With 67.8g (0.2mol) 3,4-
(EtCO2)2C6H3C ≡ CPhF (structural formula is as follows), then react 5.5h by mixture at 100 DEG C, then add 42mL first
Reaction is quenched in alcohol, and rotation removes solvent, obtains crude product;Crude product is recrystallized with 304g n-hexanes as solvent, obtains compound
76.0g。
Reaction principle is as follows:
By testing and calculating, the purity of gained compound (2) is 99.3%, yield 83%, MS:[M+1]:458;
Anal.Calcd for C20H27B10O4F:C 52.55, H 5.94;Found C 52.54, H 5.95.
Embodiment 3
The diaryl neighbour carborane derivative of the present embodiment has the structure as shown in formula (3):
Diaryl neighbour's carborane derivative preparation method of the present embodiment specifically comprises the following steps:
8.1g [BMIM] AuCl is added in the three-necked flask with condensation reflux unit at room temperature4It is molten with 1036mL
Agent toluene, is stirred, and 90g (0.3mol) B is added into mixed system10H12(Et2S)2With 135.2g (0.3mol) 3,4-
(EtCO2)2C6H3C ≡ CPhI (structural formula is as follows), then react 8h by mixture at 105 DEG C, then add 72mL methanol
Reaction is quenched, rotation removes solvent, obtains crude product;Crude product is recrystallized with 563g n-hexanes as solvent, obtains compound
141.2g。
Reaction principle is as follows:
By testing and calculating, the purity of gained compound (3) is 99.5%, yield 83%, MS:[M+1]:566;
Anal.Calcd for C20H27B10O4I:C 42.51, H 4.81;Found C 42.50, H 4.82.
Diaryl neighbour carborane derivative and its performance in embodiment 4-15 is as shown in table 1, other reference implementation examples 1
In content.
Diaryl neighbour's carborane derivative in the embodiment 4-15 of table 1
Test example
The nonlinear optical property of compound synthesized by the various embodiments described above is characterized using second hyperpolarizabilitieof,
It is specific as follows:
Pass through the nonlinear optical property of Super-Rayleight scattering (HRS) technical research diaryl neighbour's carborane derivative.Due to
Quantitative calculating to hyperpolarizability needs the definite absworption peak wavelength value of compound, therefore successively by UV-vis and HRS to implementing
Compound in example is researched and analysed.
1) test apparatus:Shimadzu UV 101SP ultraviolet-visible spectrophotometers;Nd-YAG lasers
2) testing conditions:
In UV-vis tests:Solvent is dichloromethane, and temperature is 20 DEG C, and test sample concentration is 10-5M。
In HRS tests:Solvent is anhydrous tetrahydro furan, and fundamental laser wavelength 1064nm, pulse width 20ns are maximum
Pulse strength is 200mJ.
3) calculate and analyze
β is calculated with internal standard method based on " two-level model "HRSValue, formula are as follows:
βHRS=β0D0(λ), D0[(the 1- λ of (λ)=1/2 max/λ2)(1-4λ2 max/λ2)]
Wherein:λ is fundamental laser wavelength (1064nm), λmaxFor compound maximum absorption wavelength, β0For static second order super
Rate.
Test result see the table below:
The nonlinear optical property analysis result of compound and adjacent carborane in the embodiment 1-15 of table 2
From the data of table 2:The synthesized more adjacent carborane of compound ultraviolet maximum absorption wavelength significantly increases, in purple
There is the good transparency in Wai Guang areas, have larger second order susceptibility β value, maximum up to 341.44 × 10-30Esu, NLO are responded,
It is adapted to turn into nonlinear optical material.