39 research outputs found
1,4-bis(2,2-diphenylethenyl)benzene as an efficient emitting material for organic light emitting diodes
No full textWe report on the photophysical properties of 1,4-bis(2,2-diphenylethenyl)benzene
(PEB) in a solution and a solid state. A poor blue photoluminescence efficiency of PEB in a solution dramatically increases in the deposited film. We explain such properties in terms of molecular dynamics and degrees of intramolecular freedom in various molecular environments. PEB as an electron-transport and emitting layer in organic light-emitting diodes (OLEDs) shows bright blue-green electroluminescence (EL) with the peak wavelength at λmax ~ 495 nm. The maximum external EL quantum efficiency of ηEL = 2.5 % and maximum luminance of 41600 cd/m2 in the optimized device were obtained, indicating that PEB possesses superior electron-transport ability
Convenient Preparation of 3,3-Diary1-2-propen-1-ols for Synthesis of Cibenzoline and the Analogs
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Cesium fluoride-promoted esterification of carboxylic acids. A practical alternative to the diazomethane method and direct conversion of organotin carboxylates
No full textUnusual rate acceleration in the presence of aldehydes of distannoxane-catalyzed acetalization of ketones and deactivated aldehydes: a new mode of carbonyl activation
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Comparison between Electron Transfer and Nucleophilic Reactivities of Ketene Silyl Acetals with Cationic Electrophiles
No full textSpanish-Japanese organic chemistry symposium
No full textCentro de Informacion y Documentacion Cientifica (CINDOC). C/Joaquin Costa, 22. 28002 Madrid. SPAIN / CINDOC - Centro de Informaciòn y Documentaciòn CientìficaSIGLEESSpai
Highly Powerful and Practical Acylation of Alcohols with Acid Anhydride Catalyzed by Bi(OTf) 3
No full textUnusual Preference for Ketone and Reversal of Chemoselectivity in Lewis Acid-Catalyzed Aldol Reaction of Ketene Silyl Acetal
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