Ge(NR2)2 (R = SiMe3) insertion into LAu–Cl bonds

Germylene Ge(NR2)2 (R = SiMe3) inserts into the Au–Cl bond of LAuCl (L = PPh3, PCy3, PEt3, PMe2Ph, PMePh2) giving LAu–GeCl(NR2)2 (1). Treatment of [(PPh3Au)3(μ-O)]BF4 with Ge(NR2)2 results in fluoride abstraction from BF4- and formation of LAu–GeF(NR2)2 (2). Complexes 1 and 2 are photoluminescent and NMR data indicate dynamic behavior in solution most likely as a result of phosphine exchange.

Graphical abstractPhotoluminescent Au–Ge complexes LAu–GeX(NR2)2 (X = Cl, F) are formed in reactions of Ge(NR2)2 (R = SiMe3) with Au(I) complexes.Figure optionsDownload full-size imageDownload as PowerPoint slide