CN104744347B - Dianthracene compound with pyridyl at tail end and application thereof - Google Patents
Dianthracene compound with pyridyl at tail end and application thereof Download PDFInfo
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Abstract
The invention provides a dianthracene compound shown as a general formula I, wherein L1And L2Represents a single bond, a substituted or unsubstituted heterocyclic aromatic group of C2-C60, or a substituted or unsubstituted hydrocarbon aromatic group of C6-C60; l is3Represents a substituted or unsubstituted heterocyclic aromatic group of C2-C60 or a substituted or unsubstituted hydrocarbon aromatic group of C6-C60; l is1、L2And L3Is not simultaneouslyR10、R18、R21、R23‑R28Represents hydrogen, halogen, substituted or unsubstituted alkyl or alkoxy of C1 to C10. The compound has good luminescence property, high electron transport capability and excellent solubility, and can be used for luminescent materials, electron transport materials and hole blocking materials in the field of electroluminescence. The invention also provides an organic electroluminescent device comprising at least a pair of electrodes and an organic light-emitting medium between the electrodes, the organic light-emitting medium comprising at least one dianthracene compound of the invention.
Description
Technical Field
The invention relates to a dianthracene compound with a pyridyl terminal, which can be applied to the field of electroluminescence.
Background
Organic electroluminescent diodes (OLEDs) have been published since 1987 in the application of physical bulletin (appl. phys. lett.,1987,51,913) by dunqing cloud, and have received great attention from both academic and industrial circles because of their advantages of self-luminescence, low voltage dc driving, and full curing. In the field of display, the OLED has the characteristics of a cathode ray tube and a liquid crystal display, has large visual angle, low power consumption and bright color, and is known as a next generation of dream display. In the field of illumination, as the only technology capable of really realizing a surface light source, the OLED has the advantages of soft and non-glaring light emission, green and environmental protection, is most close to a healthy light source of natural light, and is known as the most energy-saving and healthy illumination light source in the human development history.
The adoption of high-performance luminescent materials is an important basis for the preparation of OLED devices. The existing OLED materials are mainly divided into small molecular materials and high molecular materials, the small molecular materials are easy to crystallize, the solubility is poor, the light-emitting efficiency of the high molecular materials is low, and the industrial production is not facilitated. Therefore, finding an organic material with high luminous efficiency and good solubility becomes a key problem in the technical field of OLED materials.
The anthracene compound which is found at present is a typical luminescent system, and is suitable for being used as an electroluminescent material. The 9, 10-diaryl anthracene has good stability and luminous efficiency, and is an excellent blue luminescent material. Due to the excellent steric hindrance effect of the 2, 9' -dianthracene compounds, the red shift of the compound film spectrum is very small compared with the PL solution spectrum, and the main luminescence peak is kept at about 450 nm. Meanwhile, the literature (chem.lett.,2008,37,1150-1151) also reports that such compounds have excellent thermal stability.
However, in the existing literature reports, 2, 9' -dianthracene compounds are mostly hydrocarbon type compounds, and only have single luminescence property, and the transmission property is poor, and the application to the field of electroluminescence can cause the problems of increased device power consumption, shortened product life, chromaticity deviation and the like, and the development of materials with both luminescence property and transmission property is urgently needed. CN101395105A reports dianthracene compounds containing carbazole and benzimidazole groups, but the synthesis route is complex, the solubility is low, the purification is difficult, and the industrial production is not facilitated.
The compound containing pyridyl is a typical electron-deficient system and has good electron accepting capability. The compound containing pyridyl is a typical electron-deficient system and has good electron accepting capability. An electron transport material containing a pyridine group reported in the literature (chem.mater., 2011,23, 621-630) shows high thermal stability, excellent hole blocking and exciton blocking capabilities and excellent electron transport capability. The pyridine group-containing electron transport materials reported in the literature (adv.Funct.Mater.,2011,21, 1881-1886) show excellent electron transport performance and electron injection performance, and meanwhile, the materials have good electrochemical stability and prolonged service life.
The invention introduces the electron-deficient pyridyl group on the basis of the dianthracene derivative with a twisted structure, so that the compound has good luminescent property and good transmission property. Overcomes the defect of poor transmission performance of the traditional hydrocarbon dianthracene compounds.
In addition, the compound of the present invention contains an alkyl group in many cases in view of the ease of industrial production.
Disclosure of Invention
The invention aims to provide a novel fluorescent compound, which introduces an electron-deficient pyridyl group on the basis of a dianthracene derivative with a twisted structure, so that the compound has good luminous performance and good transmission performance and can be used as a luminous layer, an electron transmission layer and a hole blocking layer in an organic luminous medium.
In order to accomplish the above object, the present invention provides a dianthracene compound represented by the general formula I:
wherein the content of the first and second substances,
L1and L2The same or different, independently represent a single bond, a substituted or unsubstituted heterocyclic aromatic group of C2-C60, or a substituted or unsubstituted hydrocarbon aromatic group of C6-C60;
L3independently represent a substituted or unsubstituted heterocyclic aromatic group of C2-C60 or a substituted or unsubstituted hydrocarbon aromatic group of C6-C60;
R10、R11、R12、R13、R14、R15、R16、R17、R18、R21、R23、R24、R25、R26、R27And R28Identical or different, independently of one another, represent hydrogen, halogen, substituted or unsubstituted alkyl of C1 to C10, or substituted or unsubstituted alkoxy of C1 to C10.
In some embodiments, the L is1And L2The same applies to a single bond, a substituted or unsubstituted heterocyclic aromatic group having C2-C60, or a substituted or unsubstituted hydrocarbon aromatic group having C6-C60.
In some embodiments, the L is1、L2And L3Independently of one another, the following aromatic radicals:
wherein the content of the first and second substances,
ra, Rb, Rc, Rd, which are identical or different, independently of one another denote hydrogen, halogen, substituted or unsubstituted alkyl of C1 to C30 or substituted or unsubstituted alkoxy of C1 to C30.
In some embodiments, the L is1、L2And L3Independently of one another, the following aromatic radicals:
wherein the content of the first and second substances,
ra, Rb, Rc can be hydrogen, halogen, substituted or unsubstituted alkyl of C1-C30, or substituted or unsubstituted alkoxy of C1-C30.
In some embodiments, R26And R27Each independently selected from hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl or tert-butyl.
In another aspect, the invention provides two methods for synthesizing dianthracene compounds of the formula I, one method being as follows:
1) reacting a compound of formula 4
Obtaining the compound of formula 2 by reaction
2) Reacting a compound of formula 6
And a compound of formula 7
Obtaining the intermediate of the formula 8 through suzuki coupling reaction
Subjecting the intermediate of formula 8 to a boration reaction to obtain a compound of formula 3
3) Carrying out suzuki coupling reaction on the compound shown in the formula 2 and the compound shown in the formula 3 to obtain a dianthracene compound shown in the general formula I:
wherein the content of the first and second substances,
X1,X2,X3is halogen.
The other method comprises the following steps:
1) reacting a compound of formula 2
And a compound of formula 9
Obtaining the compound of formula 10 by coupling reaction
Obtaining the compound of formula 11 by bromination
2) The compounds of formula 11 and 12
Obtaining the compound of formula 13 by a coupling reaction
Bromination to give the compound of formula 14
3) The compounds of formula 14 and formula 15
Through coupling reaction, the dianthracene compound shown in the general formula I is obtained
Wherein the content of the first and second substances,
X4is halogen.
The dianthracene compounds shown as the general formula I are used as luminescent materials, electron transport materials or hole blocking materials in the preparation of organic electroluminescent devices.
In another aspect, the present invention provides an organic electroluminescent device comprising a pair of electrodes and an organic light-emitting medium between the electrodes, wherein the organic light-emitting medium comprises at least one dianthracene compound of the present invention.
In some embodiments, the dianthracene compound is located in an electron transport layer in the organic light emitting medium.
In some embodiments, the dianthracene compound is located in a light-emitting layer in the organic light-emitting medium.
In some embodiments, the dianthracene compounds act as blue light emitting materials.
In some embodiments, the dianthracene compound serves as a host light-emitting material for the light-emitting layer.
The invention provides a method for comparing electron transport performance of materials, which adopts a quantum chemistry method to obtain the difference of the electron transport performance between compounds by comparing the electron recombination energy of the compounds within a certain precision range.
The organic compound has good transmission performance and luminescence performance, and can be used as a luminescent layer, an electron transmission layer and a hole blocking layer in an organic electroluminescent device.
Drawings
FIG. 1 shows NMR data of a compound according to the invention synthesized in example 34.
FIG. 2 shows NMR data of a compound according to the invention synthesized in example 36.
FIG. 3 shows NMR data of a compound according to the invention synthesized in example 37.
FIG. 4 shows NMR data of the compound according to the invention synthesized in example 38.
FIG. 5 shows NMR data of the compound according to the invention synthesized in example 42.
FIG. 6 shows NMR data of the compound according to the invention synthesized in example 44.
FIG. 7 shows NMR data of the compound according to the invention synthesized in example 46.
FIG. 8 shows NMR data of a compound according to the invention synthesized in example 47.
FIG. 9 shows spectral data of a compound according to the invention synthesized in example 37.
Detailed Description
Example 1
Preparation of Compound HP-NP14-PY4
1, 4-dibromonaphthalene (4 mmol,1.14 g), pyridine-4-boronic acid (4 mmol,0.49 g) and tetrakis (triphenylphosphine) palladium (100 mg) were mixed, and a mixed solution of toluene (6 ml)/ethanol (6ml)/2M Na2CO3(1ml) was added. The reaction was stirred at 100 ℃ for 4 hours and then cooled to room temperature. The reaction was diluted with water (50 ml) and extracted with ethyl acetate (3 x 50 ml). The organic phase was dried over anhydrous magnesium sulfate, concentrated and chromatographed on silica gel to give an off-white solid (0.56 g, 50% yield).
Example 2
Preparation of Compound HP-NP14-PY3
The same reaction as in example 1 was carried out except that pyridine-3-boronic acid was used instead of pyridine-4-boronic acid, to obtain the compound HP-NP14-PY 3.
Example 3
Preparation of Compound HP-NP14-PY2
The same reaction as in example 1 was carried out except that pyridine-2-boronic acid was used instead of pyridine-4-boronic acid, to obtain the compound HP-NP14-PY 2.
Example 4
Preparation of the Compound HP-2PH44-PY4
The same reaction as in example 1 was carried out except that 4, 4-dibromobiphenyl was used in place of 1, 4-dibromonaphthalene to obtain HP-2PH44-PY 4.
Example 5
Preparation of the Compound HP-2PH44-PY3
The same reaction as in example 1 was carried out except for using 4, 4-dibromobiphenyl instead of 1, 4-dibromonaphthalene and pyridine-3-boronic acid instead of pyridine-4-boronic acid, to obtain the compound HP-2PH44-PY 3.
Example 6
Preparation of the Compound HP-2PH44-PY2
The same reaction as in example 1 was carried out except for using 4, 4-dibromobiphenyl instead of 1, 4-dibromonaphthalene and pyridine-2-boronic acid instead of pyridine-4-boronic acid, to obtain the compound HP-2PH44-PY 3.
Example 7
Preparation of the Compound HP-PH44-PY4
The same reaction as in example 1 was carried out except that 1, 4-dibromobenzene was used instead of 1, 4-dibromonaphthalene, to obtain HP-PH44-PY 4.
Example 8
Preparation of the Compound HP-PH44-PY3
The same reaction as in example 1 was carried out except that 4, 4-dibromobiphenyl was used instead of 1, 4-dibromonaphthalene and pyridine-3-boronic acid was used instead of pyridine-4-boronic acid, to obtain the compound HP-PH44-PY 3.
Example 9
Preparation of the Compound HP-PH44-PY2
The same reaction as in example 1 was carried out except that 4, 4-dibromobiphenyl was used instead of 1, 4-dibromonaphthalene and pyridine-2-boronic acid was used instead of pyridine-4-boronic acid, to obtain the compound HP-PH44-PY 2.
Example 10
Preparation of Compound HP-AN-NP14-PY4
HP-NP14-PY4 (1 mmol, 284 mg) was dissolved in anhydrous tetrahydrofuran (10 ml), 1.6M butyllithium solution (1 mmol, 0.63 ml) was added dropwise at 78 deg.C, then 2-bromoanthraquinone (0.5 mmol, 144 mg) was added, warmed to room temperature and stirred for 2 hours, water (20 ml) was added and extracted with dichloromethane (3 x 40 ml), the organic phase was dried over anhydrous magnesium sulfate and concentrated to give a dark solid. The dark solid was dissolved in acetic acid (30 ml) and potassium iodide (3 mmol, 500 mg), sodium hypophosphite monohydrate (6 mmol,1.1 g) was added, stirred at 120 ℃ for 3 hours and then cooled to room temperature, whereupon a solid precipitated. The filtered solid was washed with cold water (3 × 20 ml) and dried to give HP-AN-NP14-PY4 (300 mg, 90% yield) as a white solid.
Example 11
Preparation of Compound HP-AN-NP14-PY3
The same reaction as in example 10 was carried out except that HP-NP14-PY3 was used in place of HP-NP14-PY4, to give the compound HP-AN-NP14-PY 3.
Example 12
Preparation of Compound HP-AN-NP14-PY2
The same reaction as in example 10 was carried out except that HP-NP14-PY2 was used in place of HP-NP14-PY4, to give the compound HP-AN-NP14-PY 2.
Example 13
Preparation of the Compound HP-AN-PH44-PY4
The same reaction as in example 10 was carried out except that HP-PH44-PY4 was used in place of HP-NP14-PY4, to give HP-AN-PH44-PY 4.
Example 14
Preparation of the Compound HP-AN-PH44-PY3
The same reaction as in example 10 was carried out except that HP-PH44-PY3 was used in place of HP-NP14-PY4, to give HP-AN-PH44-PY 3.
Example 15
Preparation of the Compound HP-AN-2PH44-PY4
The same reaction as in example 10 was carried out except that HP-2PH44-PY4 was used in place of HP-NP14-PY4, to give HP-AN-2PH44-PY 4.
Example 16
Preparation of the Compound HP-AN-2PH44-PY3
The same reaction as in example 10 was carried out except that HP-2PH44-PY3 was used in place of HP-NP14-PY4, to give HP-AN-2PH44-PY 3.
Example 17
Preparation of the Compound HP-ANme-PH44-PY4
The same reaction as in example 10 was carried out except for using HP-PH44-PY4 in place of HP-NP14-PY4 and 2-bromo-6-methylanthraquinone in place of 2-bromoanthraquinone, to obtain HP-ANme-PH44-PY 4.
Example 18
Preparation of the Compound HP-ANme-PH44-PY3
The same reaction as in example 10 was carried out except for using HP-PH44-PY3 in place of HP-NP14-PY4 and 2-bromo-6-methylanthraquinone in place of 2-bromoanthraquinone, to obtain HP-ANme-PH44-PY 3.
Example 19
Preparation of the Compound HP-ANet-2PH44-PY4
The same reaction as in example 10 was carried out except for using HP-2PH44-PY4 in place of HP-NP14-PY4 and 2-bromo-6 ethylanthraquinone in place of 2-bromoanthraquinone, to obtain the compound HP-ANet-2PH44-PY 4.
Example 20
Preparation of the Compound HP-AN9-PH44-PY4
1, 4-dibromoanthracene (4 mmol,1.34 g), 4- (4-pyridyl) -phenylboronic acid (4 mmol,0.80 g) and tetrakis (triphenylphosphine) palladium (100 mg) were mixed, and a mixed solution of toluene (6 ml)/ethanol (6ml)/2M Na2CO3(1ml) was added. The reaction was stirred at 100 ℃ for 4 hours under nitrogen blanket and then cooled to room temperature. The reaction was diluted with water (50 ml) and extracted with ethyl acetate (3 x 50 ml). The organic phase was dried over anhydrous magnesium sulfate, concentrated and chromatographed on silica gel to give HP-AN9-pH44-PY4 as a yellow solid (0.66, 40% yield).
Example 21
Compound HP-AN9-PH44-Preparation of PY3
The same reaction as in example 20 was conducted except that 4- (3-pyridyl) -phenylboronic acid was used instead of 4- (4-pyridyl) -phenylboronic acid, to give a compound HP-AN9-PH44-PY 3.
Example 22
Preparation of the Compound HP-AN9-PH44-PY2
The same reaction as in example 20 was conducted except that 4- (2-pyridyl) -phenylboronic acid was used instead of 4- (4-pyridyl) -phenylboronic acid, to give a compound HP-AN9-PH44-PY 2.
Example 23
Preparation of the Compound HP-AN9-PH43-PY4
The same reaction as in example 20 was conducted except that 3- (4-pyridyl) -phenylboronic acid was used instead of 4- (4-pyridyl) -phenylboronic acid, to give a compound HP-AN9-PH43-PY 4.
Example 24
Preparation of the Compound HP-AN9-2PH44-PY4
The same reaction as in example 20 was conducted except that 4- (4-pyridyl) -phenylboronic acid was used instead of 4- (4-pyridyl) -phenylboronic acid, to give a compound HP-AN9-2PH44-PY 4.
Example 25
Compound HP-AN9-2PH44-Preparation of PY3
The same reaction as in example 20 was conducted except that 4- (3-pyridyl) -phenylboronic acid was used instead of 4- (4-pyridyl) -phenylboronic acid, to give a compound HP-AN9-2PH44-PY 3.
Example 26
Preparation of the Compound HP-AN9-NP14-PY3
The same reaction as in example 20 was conducted except that 4- (3-pyridyl) -1-naphthoic acid was used instead of 4- (4-pyridyl) -phenylboronic acid, to give a compound HP-AN9-NP14-PY 3.
Example 27
Preparation of the Compound HP-AN9B-PH44-PY4
The compound HP-AN9-PH44-PY4 (3 mmol,1.23 g) was dissolved in anhydrous tetrahydrofuran (25 ml), 1.6M butyllithium solution (3.6 mmol, 2.3 ml) was added dropwise at 78 deg.C, trimethyl borate (4.5 mmol,0.5 ml) was added dropwise with stirring under nitrogen for 2 hours, stirring was continued for 2 hours under nitrogen, 1M hydrochloric acid solution (30 ml) was quenched, water (100 ml) was added to precipitate, and the solid was washed with n-hexane (3 x 20 ml) to give HP-AN9B-PH44-PY4 (0.78 g, 70% yield) as a white powder.
Example 28
Preparation of the Compound HP-AN9B-PH44-PY3
The same reaction as in example 27 was carried out except that HP-AN9-PH44-PY3 was used in place of HP-AN9-PH44-PY4 to obtain HP-AN9B-PH44-PY 3.
Example 29
Preparation of the Compound HP-AN9B-PH44-PY2
The compound HP-AN9B-PH44-PY2 was obtained by the same reaction as in example 27 except that HP-AN9-PH43-1 was used in place of HP-AN9-PH44-PY 4.
Example 30
Preparation of the Compound HP-AN9B-PH43-PY4
The same reaction as in example 27 was carried out except that HP-AN9-PH43-PY4 was used in place of HP-AN9-PH44-PY4 to obtain HP-AN9B-PH43-PY 4.
Example 31
Preparation of the Compound HP-AN9B-2PH44-PY4
The same reaction as in example 27 was carried out except that HP-AN9-2PH44-PY4 was used in place of HP-AN9-PH44-PY4 to obtain HP-AN9B-2PH44-PY 4.
Example 32
Preparation of the Compound HP-AN9B-2PH44-PY3
The same reaction as in example 27 was carried out except that HP-AN9-2PH44-PY3 was used in place of HP-AN9-PH44-PY4 to obtain HP-AN9B-2PH44-PY 3.
Example 33
Preparation of the Compound HP-AN9B-NP14-PY3
The same reaction as in example 27 was carried out except that HP-AN9-NP14-PY3 was used in place of HP-AN9-PH44-PY4 to obtain HP-AN9B-NP14-PY 3.
Example 34
Preparation of the Compound HP-L-NP14-PY4-L-NP14-PY4
[ HP-AN-NP14-PY4] (1 mmol,663 mg), [ HP-AN9B-NP14-PY4] (1 mmol,425 mg) and tetrakis (triphenylphosphine) palladium (25 mg) were mixed, and a mixed solution of toluene (2 ml)/ethanol (2ml)/2M Na2CO3(0.5ml) was added. The reaction was stirred at 100 ℃ for 4 hours and then cooled to room temperature. The reaction was diluted with water (40 ml) and extracted with ethyl acetate (3 x 40 ml). The organic phase was dried over anhydrous magnesium sulfate, concentrated and subjected to silica gel column chromatography to give HP-L-NP14-PY4-L-NP14-PY4 (675 mg, 70% yield) as a pale white solid.
The NMR data of the product is shown in figure 1.
Example 35
Preparation of the Compound HP-L-NP14-PY4-L-NP14-PY3
The same reaction as in example 34 was carried out except that HP-AN9B-NP14-PY3 was used in place of HP-AN9B-NP14-PY4 to give HP-L-NP14-PY4-L-NP14-PY 3.
MS(EI)m/z=963.36(M+)
Example 36
Preparation of the Compound HP-L-PH44-PY4-L-PH44-PY4
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY4 was used instead of HP-AN-NP14-PY4 and HP-AN9B-PH44-PY4 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY4-L-PH44-PY 4.
The NMR data of the product is shown in figure 2.
Example 37
Preparation of the Compound HP-L-PH44-PY4-L-PH44-PY3
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY4 was used instead of HP-AN-NP14-PY4 and HP-AN9B-PH44-PY3 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY4-L-PH44-PY 3.
The NMR data of the product is shown in figure 3.
Spectral data of the product is shown in fig. 9.
Example 38
Preparation of the Compound HP-L-PH44-PY4-L-PH44-PY2
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY4 was used instead of HP-AN-NP14-PY4 and HP-AN9B-PH44-PY2 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY4-L-PH44-PY 2.
The NMR data of the product is shown in figure 4.
Example 39
Preparation of the Compound HP-L-PH44-PY3-L-PH44-PY2
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY3 was used instead of HP-AN-NP14-PY4 and HP-AN9B-PH44-PY2 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY3-L-PH44-PY 2.
MS(EI)m/z=813.31(M+)
Example 40
Preparation of the Compound HP-L-PH44-PY2-L-PH44-PY3
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY2 was used instead of HP-AN-NP14-PY4 and HP-AN9B-PH44-PY3 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY2-L-PH44-PY 3.
MS(EI)m/z=813.31(M+)
EXAMPLE 41
Preparation of the Compound HP-L-PH44-PY3-L-PH44-PY3
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY3 was used instead of HP-AN-NP14-PY4 and HP-AN9B-PH44-PY3 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY3-L-PH44-PY 3.
MS(EI)m/z=813.31(M+)
Example 42
Preparation of the Compound HP-L-PH44-PY2-L-2PH44-PY4
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY2 was used instead of HP-AN-NP14-PY4 and HP-AN9B-2PH44-PY4 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY2-L-2PH44-PY 4.
The NMR data of the product is shown in figure 5.
Example 43
Preparation of the Compound HP-L-PH44-PY4-L-NP14-PY2
The same reaction as in example 34 was carried out except that HP-AN-PH44-PY4 was used instead of HP-AN-NP14-PY4 and HP-AN9B-NP14-PY2 was used instead of HP-AN9B-NP14-PY4 to obtain HP-L-PH44-PY4-L-NP14-PY 2.
MS(EI)m/z=866.33(M+)
Example 44
Preparation of the Compound HP-L-2PH44-PY4-L-2PH44-PY4
The same reaction as in example 34 was carried out except that HP-AN-2PH44-PY4 was used instead of HP-AN-NP14-PY4 and HP-AN9B-2PH44-PY4 was used instead of HP-AN9B-NP14-PY4 to obtain the compound HP-L-2PH44-PY4-L-2PH44-PY 4.
The NMR data of the product is shown in figure 6.
Example 45
Preparation of the Compound HP-L-2PH44-PY4-L-PH44-PY4
The same reaction as in example 34 was carried out except that HP-AN-2PH44-PY4 was used instead of HP-AN-NP14-PY4 and HP-AN9B-PH44-PY4 was used instead of HP-AN9B-NP14-PY4 to obtain the compound HP-L-2PH44-PY4-L-PH44-PY 4.
MS(EI)m/z=965.38(M+)
Example 46
Preparation of the Compound HP-L1-PH44-PY3-L-PH44-PY4
The same reaction as in example 34 was carried out except that HP-ANme-PH44-PY3 was used instead of HP-AN 14-PY4 and HP-AN9B-PH44-PY4 was used instead of HP-AN9B-NP14-PY4, whereby the compound HP-L1-PH44-PY3-L-PH44-PY4 was obtained.
The NMR data of the product is shown in figure 7.
Example 47
Preparation of the Compound HP-L2-PH44-PY4-L-PH44-PY4
The same reaction as in example 34 was carried out except that HP-ANet-PH44-PY4 was used instead of HP-AN 14-PY4 and HP-AN9B-PH44-PY4 was used instead of HP-AN9B-NP14-PY4, whereby the compound HP-L2-PH44-PY4-L-PH44-PY4 was obtained.
The NMR data of the product is shown in figure 8.
Example 48
Preparation of the Compound HP-L2-PH44-PY4-L-PH44-PY3
The same reaction as in example 34 was carried out except that HP-ANet-PH44-PY4 was used instead of HP-AN 14-PY4 and HP-AN9B-PH44-PY3 was used instead of HP-AN9B-NP14-PY4, whereby the compound HP-L2-PH44-PY4-L-PH44-PY3 was obtained.
MS(EI)m/z=841.35(M+)
Example 49
Preparation of the Compound HP-L2-PH44-PY4-L-PH44-PY3
The same reaction as in example 34 was carried out except that HP-ANet-PH44-PY4 was used instead of HP-AN 14-PY4 and HP-AN9B-PH44-PY3 was used instead of HP-AN9B-NP14-PY4, whereby the compound HP-L2-PH44-PY4-L-PH44-PY3 was obtained.
MS(EI)m/z=993.41(M+)
Example 50
Acquisition of electronic recombination energy of the Compound HP-L-NP14-PY4-L-NP14-PY4 obtained in example 34
Inputting the molecular coordinates of the compound HP-L-NP14-PY4-L-NP14-PY4 into quantum chemical software, optimizing under b3lyp/6-31G (d, p), respectively obtaining the ground state energy (E1) of the compound, the vertical excited state energy (E2) containing one electron, the adiabatic excited state energy (E3) containing one electron, and obtaining the electronic recombination energy E of the compound by a recombination energy calculation formula E = | E1-E4| + | E2-E3| based on the neutral molecular energy (E4) of the adiabatic excited state configuration.
Example 51
Acquisition of Electron recombination energy of the Compound HP-L-PH44-PY2-L-2PH44-PY4 obtained in example 42
The same operation as in example 50 was carried out except that the molecular coordinates of the compound HP-L-PH44-PY2-L-2PH44-PY4 were used in place of the molecular coordinates of HP-L-NP14-PY4-L-NP14-PY4 to obtain the compound [ HP-L-PH44-PY2-L-2PH44-PY4] as an electron recombination energy.
Example 52
Acquisition of Electron recombination energy of the Compound HP-L2-PH44-PY4-L-PH44-PY4 obtained in example 47
The same procedures used in example 50 were repeated except for replacing HP-L-NP14-PY4-L-NP14-PY4 with the molecular coordinates of the compound HP-L2-PH44-PY4-L-PH44-PY4 to obtain the compound [ HP-L2-PH44-PY4-L-PH44-PY4] as an electron recombination energy.
Comparative example
Acquisition of Compound AND Electron recombination energy
By the same operation as in example 50 except that the molecular coordinates of HP-L-NP14-PY4-L-NP14-PY4 were replaced with those of AND,
AND obtaining the compound AND electron recombination energy.
The electron recombination energy data obtained above are shown in the following table:
E1(a.u.) | E2(a.u.) | E3(a.u.) | E4(a.u.) | E(a.u.) | relative mobility | |
Example 50 | 2512.3565397 | 2512.3909196 | 2512.3987687 | 2512.3510566 | 0.01333 | 1.03 |
Example 51 | 2512.3559116 | 2512.3900936 | 2512.3968187 | 2512.3499391 | 0.0127 | 1.06 |
Example 52 | 2512.3555262 | 2512.3878386 | 2512.3951449 | 2512.3498831 | 0.01295 | 1.05 |
Comparative example | 1308.9535859 | 1308.9672428 | 1308.9751160 | 1308.9472085 | 0.01425 | 1 |
According to the literature (J.Phys.chem.A2003, 107, 5241-5251), the smaller the recombination energy, the higher the electron mobility. From the above table, it can be seen that the examples perform well in electron recombination compared with the conventional AND, indicating that the compound of the present invention can also be applied in the field of electroluminescence as an electron transport material.
Although the invention has been described in connection with the embodiments, the invention is not limited to the embodiments described above, and it should be understood that various modifications and improvements can be made by those skilled in the art within the spirit of the invention, and the scope of the invention is outlined by the appended claims.
Claims (1)
1. A method for preparing dianthracene compounds shown as a general formula I,
the method comprises the following steps:
1) reacting a compound of formula 2
And a compound of formula 9
Obtaining the compound of formula 10 by coupling reaction
Obtaining the compound of formula 11 by bromination
2) The compounds of formula 11 and 12
Obtaining the compound of formula 13 by a coupling reaction
Bromination to give the compound of formula 14
3) The compounds of formula 14 and formula 15
Through coupling reaction, the dianthracene compound shown in the general formula I is obtained
Wherein the content of the first and second substances,
L1and L2The same or different, independently of each other, represent a substituted or unsubstituted heterocyclic aromatic group of C2-C60 or a substituted or unsubstituted hydrocarbon aromatic group of C6-C60;
L3independently represent a substituted or unsubstituted heterocyclic aromatic group of C2-C60 or a substituted or unsubstituted hydrocarbon aromatic group of C6-C60;
R11、R12、R13、R14、R15、R16、R17、R18、R21、R23、R24、R25、R26、R27And R28Identical or different, independently of one another, represent hydrogen, halogen, C1-C10 substituted or unsubstitutedSubstituted alkyl, or substituted or unsubstituted alkoxy of C1-C10;
X4is halogen.
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Citations (4)
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US5935721A (en) * | 1998-03-20 | 1999-08-10 | Eastman Kodak Company | Organic electroluminescent elements for stable electroluminescent |
CN101395105A (en) * | 2006-03-06 | 2009-03-25 | Lg化学株式会社 | Novel anthracene derivative and organic electronic device using the same |
CN101967079A (en) * | 2009-07-28 | 2011-02-09 | 靳焕改 | Organic material and application thereof to organic electroluminescent devices |
CN102742042A (en) * | 2010-01-29 | 2012-10-17 | 住友化学株式会社 | Luminescent composition and light-emitting element using said composition |
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Publication number | Priority date | Publication date | Assignee | Title |
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US5935721A (en) * | 1998-03-20 | 1999-08-10 | Eastman Kodak Company | Organic electroluminescent elements for stable electroluminescent |
CN101395105A (en) * | 2006-03-06 | 2009-03-25 | Lg化学株式会社 | Novel anthracene derivative and organic electronic device using the same |
CN101967079A (en) * | 2009-07-28 | 2011-02-09 | 靳焕改 | Organic material and application thereof to organic electroluminescent devices |
CN102742042A (en) * | 2010-01-29 | 2012-10-17 | 住友化学株式会社 | Luminescent composition and light-emitting element using said composition |
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