Ir phenyl parazolepyrazole complexes substituted with one or more strong electron withdrawing groups such as cyano groups resulted in enhancing the metal to ligand charge transfer (MLCT) which in turn resulted in enhanced emission efficiency and red shifted emission.
Ir phenyl parazole complexes substituted with strong electron withdrawing group such as cyano group resulted in enhancing the metal to ligand charge transfer (MLCT) which in turn resulted in enhanced emission efficiency and red shifted emission.
US3988347A
申请人:——
公开号:US3988347A
公开(公告)日:1976-10-26
US4096333A
申请人:——
公开号:US4096333A
公开(公告)日:1978-06-20
Synthesis of substituted indazole-5,6-dicarbonitriles
作者:Zh. V. Chirkova、V. S. Sharunov、S. I. Filimonov、I. G. Abramov、S. I. Firgang、G. A. Stashina
DOI:10.1134/s107042801212010x
日期:2012.12
Methods have been developed for the synthesis of previously unknown N-substituted 1H-indazole-5,6-dicarbonitriles from 4-methyl-5-nitrophthalonitrile.