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US5792567A Triazole derivatives and organic electroluminescent devices produced therefrom 失效
由其制备的三唑衍生物和有机电致发光器件

Triazole derivatives and organic electroluminescent devices produced
therefrom
摘要:
The triazole derivatives of this invention are expressed by the general formula (1). The organic electroluminescent device of this invention have a layer containing at least one triazole derivative of the general formulas (1) and (2). Such triazole derivatives are excellent in electron-transport efficiency, hole-blocking properties and heat resistance, and such organic electroluminescent devices are excellent in luminous efficiency, luminance and stability. ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 have the same meanings as indicated in the specification.
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