exploited in a new direction as reagents for free radical substitution toward some N-halosuccinimide nonreactive bis-heterocycles. An unexpected selectivity and reactivity were observed with methyl benzenes, methyl heterocycles, and methyl-bis-heterocycles of interest. A chemometric study has been performed to optimize five independent factors of the chlorination reaction with TCDGU. The predictive model
The synthesis of C3-symmetrical tris-ACE-(6,6â²-bis-heterocyclyl)-α-cyclodextrins via âone potâ StaudingerâAza-Wittig (SAW) reaction is described. The spectroscopic properties of their metal coordination compounds were analysed. The spontaneous formation of metallosupramolecular helicates generate strong exciton coupling features enlighten much information on the nature, the geometries of the complexes and their absolute configuration.
An object of the present invention is to provide an organic electroluminescence device having excellent light emission efficiency and durability, in particular, durability when driving at a high temperature. Provided is an organic electroluminescence device including on a substrate a pair of electrodes, and at least one layer of an organic layer including a light emitting layer containing a light emitting material disposed between the electrodes, wherein the light emitting layer includes at least each one of specific indolocarbazole derivatives and specific condensed ring metal complexes.
COMPOUND FOR ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Nippon Steel Chemical Co., Ltd.
公开号:EP1956022B1
公开(公告)日:2012-07-25
Synthesis and luminescence properties of a new tripode containing 2,2′-bipyrazine subunits: The tris-[(6-methyl-2,2′-bipyrazine-2-yl)methyl]amine
作者:Florence Bodar-Houillon、Alain Marsura
DOI:10.1016/0040-4039(94)02381-k
日期:1995.2
New 6-methyl-2,2'-bipyrazinyl tripodal ligand 5 and pentadendate ligand 6 have been obtained in a one step alkali metal ion assisted reaction or in two steps from a 6-bipyrazine derivative. Eu(lII) and Tb(III) complexes have been synthesized, UV-Vis spectra show strong absorbance of both complexes at 295nm. Excitation of the Eu(III) complex in acetonitrile causes an emission of Eu3+ ion at 614 nm occuring of the A-ET-E($) process efficiency, preferentially along the transition D-5(0) --> F-7(2).