Synthesis, photophysical and electrochemincal properties of luminescent dinuclear copper(I) diimines

Abstract

Reaction of [Cu(PPh₃)₂(MeCN)₂]BF₄ with bridging diimine ligands (L) in CH₂Cl₂ gave dinuclear copper(I) complexes [{Cu(PPh₃)₂}₂L]²⁺[L = 2,3-bis(2-pyridyl)pyrazine, 6,7-dimethyl-2,3-bis(2-pyridyl)quinoxaline, 2,3-bis(2-pyridyl) quinoxaline, 6,7-dichloro-2,3-bis(2-pyridyl)quinoxaline or 2,3-bis(2-pyridyl) benzo[g] quinoxaline], which exhibit rich photophysical and electrochemical properties.