CN106467544B - A kind of organic fluorescent compounds and its application - Google Patents

A kind of organic fluorescent compounds and its application Download PDF

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CN106467544B
CN106467544B CN201610422166.1A CN201610422166A CN106467544B CN 106467544 B CN106467544 B CN 106467544B CN 201610422166 A CN201610422166 A CN 201610422166A CN 106467544 B CN106467544 B CN 106467544B
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李崇
叶中华
王立春
张兆超
徐凯
于凯朝
刘琼文
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Jiangsu Sunera Technology Co Ltd
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Jiangsu Sanyue Optoelectronic Technology Co Ltd
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Abstract

The invention discloses a kind of new organic fluorescent compound and its applications, shown in the structural formula of the compound such as general formula (1).The compound has good fluorescence quantum efficiency and electroluminescent efficiency, easily forms armorphous film, has good thermal stability, can be used as luminescent layer material of main part or dopant material in organic electroluminescence device and uses.

Description

A kind of organic fluorescent compounds and its application
Technical field
The present invention relates to technical field of semiconductors, exist more particularly, to a kind of fluorescent chemicals and as emitting layer material Application on Organic Light Emitting Diode.
Background technique
Organic electroluminescent (OLED:Organic Light Emission Diodes) device technology can both be used to make New display product is made, production novel illumination product is can be used for, is expected to substitute existing liquid crystal display and fluorescent lighting, Application prospect is very extensive.
Currently, OLED display technology in smart phone, applied by the fields such as tablet computer, further will also be to electricity Depending on etc. large scales application field extension.But require to compare with actual products application, the luminous efficiency of OLED device, it uses The performances such as service life also need further to be promoted.
Structure of the OLED luminescent device like sandwich, including electrode material film layer, and be clipped in Different electrodes film layer it Between organic functional material, various different function materials are overlapped mutually depending on the application collectively constitutes OLED luminescent device together. As current device, when the two end electrodes application voltage to OLED luminescent device, and pass through electric field action organic layer functional material Positive and negative charge in film layer, positive and negative charge is further compound in luminescent layer, i.e. generation OLED electroluminescent.
Proposing high performance research for OLED luminescent device includes: the driving voltage for reducing device, improves shining for device Efficiency improves the service life etc. of device.In order to realize OLED device performance continuous promotion, not only need from OLED device The innovation of structure and manufacture craft is constantly studied and is innovated with greater need for oled light sulfate ferroelectric functional material, formulates out higher performance OLED Functional material.
Oled light sulfate ferroelectric functional material applied to OLED device can be divided into two major classes, i.e. charge injection transmission from purposes Material and luminescent material further can also inject charge into transmission material and be divided into electron injection transmission material and hole injection biography Luminescent material can also be divided into main body luminescent material and dopant material by defeated material.In order to make high performance OLED photophore Part, it is desirable that various organic functional materials have good photoelectric characteristic, for example, as charge transport materials, it is desirable that have good Carrier mobility, high-vitrification conversion temperature etc., as luminescent layer material requirements material have good fluorescent quantum Efficiency, material vapor deposition stability, HOMO/LUMO appropriate energy rank etc..
The oled light sulfate ferroelectric functional material film layer for constituting OLED device includes at least two layers or more structure, applies in industry OLED device structure then includes a variety of film layers such as hole injection layer, hole transmission layer, luminescent layer, electron injecting layer, that is to say, that Photoelectric functional material applied to OLED device includes at least hole-injecting material, hole mobile material, luminescent material, electronics note Enter material etc., material type and collocation form have the characteristics that rich and multifarious.In addition, for the OLED device of different structure For part collocation, used photoelectric functional material has stronger selectivity, and identical material is in different structure device Performance, it is also possible to completely totally different.
Currently, fluorescent material research aspect has been achieved for significant progress, the demand of industrialization can satisfy；But its Deficiency is still remained in terms of efficiency, service life, is not easy to reach the requirement of full-color RGB.Thus, there is high efficiency, the fluorescence of long-life The research and development of material is always the hot spot of industrialization.
Therefore, for current OLED shows the actual demand of Lighting Industry, the development of fluorescent material is also far from enough, The requirement for lagging behind panel manufacturing enterprise, the organic functions fluorescent material as material enterprise development higher performance seem especially heavy It wants.
Summary of the invention
In view of the above-mentioned problems existing in the prior art, the applicant provides a kind of new organic fluorescent compound and its answers With.The OLED device that the present invention produces has good external quantum efficiency, stability of material and excitation purity, can satisfy face The requirement of plate manufacturing enterprise.
Technical scheme is as follows:
A kind of organic fluorescent compounds, shown in the structure of the compound such as general formula (1):
In general formula (1), R1、R2Separately it is expressed as aromatic amine groups or nitrogenous multicomponent heterocycle aromatic group； R1、R2It is same or different；
In general formula (1), X is oxygen atom, sulphur atom, selenium atom, dimethyl-silicon, C1-10The Asia that linear or branched alkyl group replaces One of the amido that alkyl, the alkylidene of aryl substitution, alkyl or aryl replace；
In general formula (1), a, c are separately expressed as
One of；
X4、X5Respectively oxygen atom, sulphur atom, selenium atom, dimethyl-silicon, C1-10The alkylene that linear or branched alkyl group replaces One of the amido that base, the alkylidene of aryl substitution, alkyl or aryl replace, X4、X5It is same or different；A and general formula (1) The adjacent site connection of any two in middle active site 1,2,3,4；C and any two phases in active site 5,6,7,8 in general formula (1) Adjacent site connection.
Preferably, the X can also be-CnHn, and n is 0, at this time shown in the structure such as general formula (2) of general formula (1):
Preferably, the R1、R2It is all made of general formula (3) expression:
In general formula (3), R3、R4Separately indicate substituted or unsubstituted phenyl, pyridyl group, dibiphenylyl, terphenyl Base, anthryl, phenanthryl, triazine radical, pyrimidine radicals, quinolyl, dibenzofuran group, 9,9- dimethyl fluorenyl, 9,9- diphenyl fluorenyl, One of carbazyl, benzo carbazole base, dibenzothiophene, bifurcation piperidinyl, indolocarbazole base, phenoxazine base, thiophene oxazines base； R3、R4It is same or different.
Preferably, in the general formula (3), R3、R4Separately indicate are as follows:
Any one of.
Preferably, the R1、R2It is all made of general formula (4) expression:
In general formula (4), X1For oxygen atom, sulphur atom, dimethyl-silicon, selenium atom, C1-10The Asia that linear or branched alkyl group replaces One of the amido that alkyl, the alkylidene of aryl substitution, alkyl or aryl replace.
Preferably, the R1、R2Being all made of general formula (5) or general formula (6) indicates:
Wherein, a is expressed asX2、X3、X4Respectively oxygen atom, sulphur are former Son, selenium atom, dimethyl-silicon, C1-10Alkylidene, the alkyl or aryl of alkylidene, aryl substitution that linear or branched alkyl group replaces One of substituted amido, X3、X4It is same or different；Appoint in active site 1,2,3,4 in a and general formula (4) or general formula (5) Two adjacent site connections.
Preferably, the specific structure of the compound are as follows:
Any one of.
A kind of organic electroluminescence device containing the compound, the compound as luminescent layer material of main part or Dopant material is applied to organic electroluminescent LED.
The present invention is beneficial to be had the technical effect that
Compound of the present invention can be applied to the production of OLED luminescent device, and can obtain good device performance, The material as OLED luminescent device luminescent layer material of main part or dopant material in use, device luminous efficiency, function Rate efficiency and external quantum efficiency are greatly improved；Device color color purity be improved significantly, device lifetime gets a promotion.This hair The bright compound has good application effect in OLED luminescent device, has good industrialization prospect.
The present invention couples using dibenzo heptene with fluorenes is formed by structure as core, and is taken by different on aromatic amine Dai Ji modifies compound.Molecular structure has stronger space multistory effect, and intermolecular building-up effect is effectively reduced, Inhibit the crystallization degree of material, such material application can effectively improve device efficiency and service life in Organic Light Emitting Diode.
Detailed description of the invention
Fig. 1 is the structure chart using the OLED device of the compounds of this invention.
Fig. 2 is the chemical structural formula of critical material used in the embodiment of the present invention 12.
Specific embodiment
In order to more be apparent from technological means and practical purpose of the invention, by enumerating embodiment and comparative example, It is aided with picture simultaneously to be illustrated.
Embodiment 1 (compound 01)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 6.80 grams of (0.01M) intermediate As, 4.23 grams of (0.025M) hexichol are added in the four-hole bottle of 250ml Amine, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.06 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml Toluene is heated to reflux 25 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol=2:1 (volume ratio) mixed solvent is beaten, and 6.0 grams of white solids are obtained after recrystallization, and purity (HPLC) is 97.8%, yield 68.9%.
Elemental analysis structure (molecular formula C64H42N2O2): theoretical value C, 88.25；H,4.86；N,3.22；O,3.67；
Test value: C, 88.15；H,5.01；N,3.08；O,3.76.
Embodiment 2 (compound 04)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 7.22 grams of (0.01M) intermediate Bs, 4.23 grams of (0.025M) hexichol are added in the four-hole bottle of 250ml Amine, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.06 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml Toluene is heated to reflux 30 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol=2:1 (volume ratio) mixed solvent is beaten, and 6.19 grams of white solids are obtained after recrystallization, and purity (HPLC) is 98.08%, yield 67.8%.
Elemental analysis structure (molecular formula C67H48N2S): theoretical value C, 88.12；H,5.30；N,3.07；O,3.51；
Test value: C, 88.01；H,5.18；N,3.0；O,3.81.
Embodiment 3 (compound 08)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 7.22 grams of (0.01M) intermediate Bs are added in the four-hole bottle of 250ml, and 7.53 grams (0.025M) intermediate Body a, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.06 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 34 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =2:1 (volume ratio) mixed solvent is beaten, and 6.19 grams of white solids are obtained after recrystallization, and purity (HPLC) is 98.18%, yield 71.5%.
Elemental analysis structure (molecular formula C85H64N2O2S): theoretical value C, 86.70；H,5.48；N,2.38；O,2.72；S, 2.72；
Test value: C, 86.55；H,5.39；N,2.42；O,2.68；S,2.96.
Embodiment 4 (compound 10)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 6.80 grams of (0.01M) intermediate As are added in the four-hole bottle of 250ml, and 5.23 grams (0.025M) intermediate Body b, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.06 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 38 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =2:1 (volume ratio) mixed solvent is beaten, and 6.66 grams of white solids are obtained after recrystallization, and purity (HPLC) is 97.74%, yield 70%.
Elemental analysis structure (molecular formula C70H50N2O2): theoretical value C, 88.39；H,5.30；N,2.95；O,3.36；
Test value: C, 88.24；H,5.19；N,2.90；O,3.67.
Embodiment 5 (compound 16)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 8.11 grams of (0.01M) intermediate C are added, 5.23 grams (0.025M) intermediate in the four-hole bottle of 250ml Body b, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.08 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 40 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =1:1 (volume ratio) mixed solvent is beaten, and 7.60 grams of white solids gram are obtained after recrystallization, and purity (HPLC) is 97.40%, is received Rate 71.20%.
Elemental analysis structure (molecular formula C75H54N2O4): theoretical value C, 88.81；H,5.76；N,3.93；O, 1.50；
Test value: C, 88.67；H,5.58；N,4.02；O,1.73.
Embodiment 6 (compound 18)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 7.32 grams of (0.01M) intermediate D are added, 7.53 grams (0.025M) intermediate in the four-hole bottle of 250ml Body a, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.08 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 40 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =1:1 (volume ratio) mixed solvent is beaten, and 8.60 grams of white solids gram are obtained after recrystallization, and purity (HPLC) is 98.08%, is received Rate 73.28%.
Elemental analysis structure (molecular formula C86H64N2O3): theoretical value C, 88.02；H,5.50；N,2.39；O,4.09；
Test value: C, 87.95；H,5.64；N,2.19；O,4.22.
Embodiment 7 (compound 24)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 6.56 grams of (0.01M) intermediate Es are added in the four-hole bottle of 250ml, and 5.23 grams (0.025M) intermediate Body b, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.06 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 30 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =2:1 (volume ratio) mixed solvent is beaten, and 6.94 grams of white solids gram are obtained after recrystallization, and purity (HPLC) is 97.49%, is received Rate 71.57%.
Elemental analysis structure (molecular formula C69H48N2O4): theoretical value C, 85.51；H,4.99；N,2.89；O,6.60；
Test value: C, 85.37；H,5.02；N,2.83；O,6.78.
Embodiment 8 (compound 29)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 7.38 grams of (0.01M) intermediate F, 4.23 grams of (0.025M) hexichol are added in the four-hole bottle of 250ml Amine, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.08 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml Toluene is heated to reflux 35 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol=2:1 (volume ratio) mixed solvent is beaten, and 6.39 grams of white solids are obtained after recrystallization, and purity (HPLC) is 98.11%, yield 69.84%.
Elemental analysis structure (molecular formula C65H46N2O2Si): theoretical value C, 85.31；H,5.07；N,3.06；O,3.53；Si, 3.07；
Test value: C, 85.07；H,5.10；N,3.01；O,3.67；Si,3.15.
Embodiment 9 (compound 32)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 6.96 grams of (0.01M) intermediate H are added, 4.58 grams (0.025M) intermediate in the four-hole bottle of 250ml Body c, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.08 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 20 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =2:1 (volume ratio) mixed solvent is beaten, and 6.69 grams of white solids are obtained after recrystallization, and purity (HPLC) is 98.43%, yield 74.25%.
Elemental analysis structure (molecular formula C63H36N2O5): theoretical value C, 83.98；H,4.03；N,3.11；O,8.88；
Test value: C, 83.68；H,3.97；N,3.24；O,9.11.
Embodiment 10 (compound 36)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 7.12 grams of (0.01M) intermediate compound Is are added in the four-hole bottle of 250ml, and 7.48 grams (0.025M) intermediate Body d, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.08 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 35 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =2:1 (volume ratio) mixed solvent is beaten, and 8.26 grams of white solids are obtained after recrystallization, and purity (HPLC) is 97.86%, yield 71.90%.
Elemental analysis structure (molecular formula C82H52N2O4S): theoretical value C, 84.64；H,4.56；N,2.44；O,5.57；S, 2.79；
Test value: C, 84.58；H,4.31N,2.35；O,5.75；S,3.01.
Embodiment 11 (compound 37)
The specific synthetic route of the compound is now provided:
Under nitrogen protection, 6.96 grams of (0.01M) intermediate J are added, 7.48 grams (0.025M) intermediate in the four-hole bottle of 250ml Body e, 1.20 grams of (0.012M) sodium tert-butoxides, 0.2 gram of palladium acetate, 0.08 gram of CXA[normal-butyl two (1- adamantyl) phosphine], 200ml toluene is heated to reflux 35 hours, fully reacting；Natural cooling, filtering, filtrate revolving cross silicagel column, with toluene: ethyl alcohol =2:1 (volume ratio) mixed solvent is beaten, and 8.10 grams of white solids are obtained after recrystallization, and purity (HPLC) is 98.31%, yield 72.50%.
Elemental analysis structure (molecular formula C81H52N2O4): theoretical value C, 87.07；H,4.69；N,2.51；O,5.73；
Test value: C, 87.11；H,4.62N,2.60；O,5.67.
By the following examples 12 and comparative example 1~11 the present invention will be described in detail synthesis compound in OLED device Application effect.Compared with embodiment 12, the manufacture craft of the device is identical, and is used for the comparison 1~11 The film thickness of identical baseplate material and electrode material, electrode material is also consistent, except that used in device Some materials have carried out some adjustment, and comparative example has used compound of the present invention.Device architecture is as shown in table 1.Device junction Structure is as shown in table 1:
Embodiment 12
As shown in Figure 1, transparent base layer 1 uses transparent material, such as glass.To ito anode layer 2 (film thickness 150nm) It is washed, i.e., carries out ultraviolet-ozone washing again after successively carrying out neutralizing treatment, pure water, drying to remove transparent ITO table The organic residue in face.
On having carried out the ito anode layer 2 after above-mentioned washing, using vacuum deposition apparatus, HAT-CN, film thickness is deposited For 10nm, this layer of organic material is used as hole injection layer 3.And then TCTA (4,4', 4 "-three (clicks of 60nm thickness are deposited Azoles -9- base) triphenylamine) it is used as hole transmission layer 4.
After above-mentioned hole mobile material vapor deposition, the luminescent layer 5 of OLED luminescent device is made, structure includes OLED hair Photosphere 5 used material C BP[4,4'- bis- (9- carbazole) biphenyl] it is used as material of main part, MQAB[4,4 '-bis- (2,2- talan Base)] for biphenyl as dopant material, doping ratio is 5% weight ratio, luminescent layer film thickness is 25nm.
After above-mentioned luminescent layer 5, continuation vacuum evaporation electron transport layer materials are Alq3(8-hydroxyquinoline aluminium).The material The vacuum evaporation film thickness of material is 30nm, this layer is electron transfer layer 6.
On electron transfer layer 6, by vacuum deposition apparatus, lithium fluoride (LiF) layer that film thickness is 1nm is made, this layer is Electron injecting layer 7.
On electron injecting layer 7, by vacuum deposition apparatus, aluminium (Al) layer that film thickness is 80nm is made, this layer is cathode Reflection electrode layer 8 uses.Layers of material structure is as shown in Figure 2.
After completing OLED luminescent device as described above, anode and cathode is connected with well known driving circuit, is surveyed The luminous efficiency of metering device, luminescent color, external quantum efficiency and device lifetime, (LT90: original intensity was arrived in brightness decay 90%).Test result is shown in Table 2.
Comparative example 1
This comparative example and embodiment 12 the difference is that: the MQAB in the luminescent layer 5 of OLED luminescent device changes into reality Apply the material that example 1 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 2
This comparative example is with embodiment 12 with place: the MQAB in the luminescent layer 5 of OLED luminescent device changes into implementation The material that example 2 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 3
This comparative example and embodiment 12 the difference is that: the MQAB in the luminescent layer 5 of OLED luminescent device changes into reality Apply the material that example 3 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 4
This comparative example and embodiment 12 the difference is that: the MQAB in the luminescent layer 5 of OLED luminescent device changes into reality Apply the material that example 4 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 5
This comparative example and embodiment 12 the difference is that: the CPB in the luminescent layer 5 of OLED luminescent device changes into implementation The material that example 5 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 6
This comparative example and embodiment 12 the difference is that: the MQAB in the luminescent layer 5 of OLED luminescent device changes into reality Apply the material that example 6 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 7
This comparative example and embodiment 12 the difference is that: the CPB in the luminescent layer 5 of OLED luminescent device changes into implementation The material that example 7 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 8
This comparative example and embodiment 12 the difference is that: the MQAB in the luminescent layer 5 of OLED luminescent device changes into reality Apply the material that example 8 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 9
This comparative example and embodiment 12 the difference is that: the CPB in the luminescent layer 5 of OLED luminescent device changes into implementation The material that example 9 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 10
This comparative example and embodiment 12 the difference is that: the CPB in the luminescent layer 5 of OLED luminescent device changes into implementation The material that example 10 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Comparative example 11
This comparative example and embodiment 12 the difference is that: the CPB in the luminescent layer 5 of OLED luminescent device changes into implementation The material that example 11 is prepared.The test result of made OLED luminescent device is shown in Table 2.
Table 1
Table 2
Note: above data is all using embodiment 12 as normal component, and 12 obtained device of embodiment is in light emission luminance 1000cd/m2When, luminous efficiency 3.6cd/A, external quantum efficiency 3.0%；Driving the service life, (light emission luminance is original intensity 90%) be 30 hours
Compound of the present invention can be applied to the production of OLED luminescent device it can be seen from the result of table 2, and can be with Obtain good device performance.Luminous efficiency, the external quantum efficiency of device are greatly improved；Device lifetime is promoted non-simultaneously Chang Mingxian.Compound of the present invention has good application effect in OLED luminescent device, and has good industrialization Prospect.
Although disclosing the present invention by embodiment and preferred embodiment, it should be appreciated that it is public that the present invention is not limited to institutes The embodiment opened.On the contrary, it will be understood by those skilled in the art that it is intended to various modifications and similar arrangement.Therefore, institute Attached the scope of the claims should be consistent with widest explanation to cover all such modifications and similar arrangement.

Claims (5)

1. a kind of organic fluorescent compounds, it is characterised in that shown in the structure of the compound such as general formula (1):
In general formula (1), X be oxygen atom, sulphur atom, dimethyl-silicon, methyl substituted methylene, phenyl replace amido in one Kind；
In general formula (1), a, c are separately expressed as
One of；
X4、X5Respectively one of oxygen atom, sulphur atom, dimethyl-silicon, methyl substituted methylene, amido of phenyl substitution, X4、X5It is same or different；Site connection a adjacent with any two in active site 1,2,3,4 in general formula (1)；C and general formula (1) The adjacent site connection of any two in middle active site 5,6,7,8；
In general formula (1), the R1、R2Being all made of general formula (3), general formula (4), general formula (5) or general formula (6) indicates:
In general formula (3), R3、R4Separately indicate substituted or unsubstituted phenyl, pyridyl group, dibiphenylyl, terphenyl, Anthryl, phenanthryl, triazine radical, pyrimidine radicals, quinolyl, dibenzofuran group, 9,9- dimethyl fluorenyl, 9,9- diphenyl fluorenyl, click One of oxazolyl, benzo carbazole base, dibenzothiophene, bifurcation piperidinyl, indolocarbazole base, phenoxazine base；R3、R4It is identical or Person is different；
In general formula (4), X1For one of oxygen atom, sulphur atom, methyl substituted methylene；
Wherein, a is expressed asX2、X3、X4Respectively oxygen atom, sulphur atom, methyl substituted methylene, benzene One of the amido that base replaces, X3、X4It is same or different；In a and general formula (4) or general formula (5) in active site 1,2,3,4 Any two adjacent site connections.
2. compound according to claim 1, it is characterised in that the X is replaced with-CnHn, and n is 0, general formula at this time (1) shown in structure such as general formula (2):
3. compound according to claim 1, it is characterised in that in the general formula (3), R3、R4Separately indicate are as follows:
Any one of.
4. according to compound of any of claims 1 or 2, it is characterised in that the specific structure of the compound are as follows:
Any one of.
5. a kind of organic electroluminescence device containing any one of claims 1 or 2 compound, it is characterised in that describedization Object is closed as luminescent layer material of main part or dopant material and is applied to organic electroluminescent LED.
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