- SUBSTITUTED BIPYRIDINES FOR USE IN ORGANIC LIGHT-EMITTING DEVICES
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Optionally substituted bipyridine compounds, optionally substituted phenylbipyridine compounds, or optionally substituted bis-phenylbipyridine compounds may be useful in light-emitting devices. Some examples include, but are not limited to, optionally substituted 4-(5-(6-(4-(diphenylamino)phenyl)pyridin-3-yl)pyridin-2-yl)-N,N- diphenylbenzenamine, optionally substituted 9-(4-(5-(6-(4-(9H-carbazol-9- yl)phenyl)pyridin-3-yl)pyridin-2-yl)phenyl)-9H-carbazole, optionally substituted 4-(5-(6- (benzo[d]thiazol-2-yl)pyridin-3-yl)pyridin-2-yl)-N,N-diphenylbenzenamine, optionally substituted 4-(5-(6-(benzo[d]oxazol-2-yl)pyridin-3-yl)pyridin-2-yl)-N,N- diphenylbenzenamine, optionally substituted N,N-diphenyl-4-(5-(6-(l -phenyl- 1H- benzo[d]imidazol-2-yl)pyridin-3-yl)pyridin-2-yl)benzenamine, optionally substitut-ed 4- (5-(6-(4-(9H-carbazol-9-yl)phenyl)pyridin-3-yl)pyridin-2-yl)-N,N-diphenylbenzenamine, optionally substituted 2-(5-(6-(benzo[d]thiazol-2-yl)pyridin-3-yl)pyridin-2- yl)benzo[d]thiazole, optionally substituted 2-(5-(6-(benzo[d]thiazol-2-yl)pyridin-3- yl)pyridin-2-yl)benzo[d]oxazole, optionally substituted 9-(4-(5-(6-( benzo[d]thiazol-2- yl)pyridin-3-yl)pyridin-2-yl)phenyl)-9H-carbazole, optionally substituted 9-(4-(5-(6- (benzo[d]oxazol-2-yl)pyridin-3-yl)pyridin-2-yl)phenyl)-9H-carbazole, optionally substituted 9-(4-(6'-(l-phenyl-lH-benzo[d]imidazol-2-yl)-3,3'-bipyridin-6-yl)phenyl)-9H- carbazole, and 6,6'-bis(9-phenyl-9H-carbazol-3-yl)-3,3'-bipyridine.
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- Organic light-emitting device
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A heterocyclic compound represented by a general Formula 1 and an organic light-emitting device including the heterocyclic compound. In some embodiments the heterocyclic compound of Formula 1 may be used as a light-emitting material, a hole transporting material, or an electron transporting material. The heterocyclic compound of Formula 1 having a heterocyclic group in the molecules thereof has a high glass transition temperature (Tg) or a high melting point due to the inclusion of the heterocyclic group. Thus, the heterocyclic compound has high heat resistance against Joule's heat generated in an organic layer, between organic layers, or between an organic layer and a metal electrode when light emission occurs, and has high durability in high-temperature environments. An organic light-emitting device manufactured using the heterocyclic compound of Formula 1 has high durability when stored or operated. In addition, due to the inclusion of a substituent such as an aryl group or heteroaryl group, molecular layers formed as thin films may be maintained in good condition, thereby improving the characteristics of the organic light-emitting device.
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- Post-functionalization of disubstituted polyacetylenes via click chemistry
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We report a synthetic design and the experimental exploration of preparation of disubstituted polyacetylenes (PAs, P3) through 1,3-dipolar cycloaddition of azides with precursor PA bearing alkyne pendants. The precursor PA (P2) was derived by desilylation of the pristine PA with trimethylethynylsilane side chains (P1). P1 was obtained by polymerization of a dual-alkyne containing monomer with one of the alkynes end-capping by trimethylsilane (M) under the promotion of WCl6-Ph4Sn catalyst. Two synthetic routes, i.e. two-steps (from P1 to P3 via precursor P2) and one-pot (from P1 to P3 without separation and purification of P2) were tried and the results indicated that one-pot strategy is more facile and resultant P3-1 showed higher purity and higher molecular weight than the resultant of P3-2. By using the techniques such as GPC, FTIR and 1H NMR spectroscopy the polymerization behavior and the structures of the polymers were well characterized.
- Tong, Li,Qin, Anjun,Zhang, Xiaoa,Mao, Yu,Sun, Jingzhi,Tang, Ben Zhong
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p. 1948 - 1954
(2012/03/10)
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