Synthesis, photophysics and electrochemistry of [Au2(dppf)R2][dppf = Fe(η-C5H4PPh2)2; R = alkyl, aryl or alkynyl]. Crystal structure of [Au2(dppf)(C16H9)2](C16H9= pyren-1-yl)

Abstract

A series of organometallic complexes [Au₂(dppf)R₂][dppf = Fe(η-C₅H₄PPh₂)₂; R = Me, Ph, 1-naphthyl, 9-anthryl, pyren-1-yl (C₁₆H₉), CCPh or CCBu^t] have been synthesized. Their photophysical and electrochemical properties have been studied. Both excimer and exciplex formation are evidenced in [Au(dppf)₂(C₁₆H₉)₂]. The crystal structure of the latter has been determined.