Divalent osmium complexes: Synthesis, characterization, strong red phosphorescence, and electrophosphorescence

…, W Kaminsky, L Dalton, X Jiang, S Liu…

Index: Carlson, Brenden; Phelan, Gregory D.; Kaminsky, Werner; Dalton, Larry; Jiang, Xuezhong; Liu, Sen; Jen, Alex K.-Y. Journal of the American Chemical Society, 2002 , vol. 124, # 47 p. 14162 - 14172

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Citation Number: 205

Abstract

We report new divalent osmium complexes that feature strong red metal-to-ligand-charge- transfer (MLCT) phosphorescence and electrophosphorescence. The general formula of the complexes is Os (II)(NN) 2L-L, where NN is either a bipyridine or a phenanthroline and LL is either a phosphine or an arsine. New polypyridyl ligands synthesized are 4, 4'-di (biphenyl)- 2, 2'-bipyridine (15) and 4, 4'-di (diphenyl ether)-2, 2'-bipyridine (16), and the 1, 10- ...