A series of methyl-substituted bis(2-(hydroxyphenyl)benzothiazolate)zinc derivatives [Zn(n-MeBTZ)2, n = 3 (1a), 4 (1b), 5 (1c)] were synthesized to investigate the correlation between molecularstructures and optical properties. The results indicate that the blue-emitting (λmax = 470 nm) complex 1b is monomer with a higher PL quantum efficiency than complexes 1, 1a, 1c. Two green-emitting (λmax = 507 nm
ORGANOMETALIC COMPOUNDS FOR ELECTROLUMINESCENCE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
申请人:Kim Hyun
公开号:US20100152455A1
公开(公告)日:2010-06-17
The present invention relates to organic electroluminescent compounds and electroluminescent devices comprising the same as host material. The electroluminescent compounds according to the invention are characterized by having three ligands, two bivalent metals and a monovalent anion derived from an inorganic or an organic acid.
precise control of the oxidation pathways so that directing groups can be either preserved or cleaved. We found that N-phenoxyacetamides could undergo ortho-arylation reactions with or without an external oxidant, yielding products with different oxidation states, notably the rare bis-arylated phenols. Notably, a unique rhodacycle intermediate was isolated, characterized by X-ray crystallography, and