Syntheses of Au(III) and Au(I) Complexes of 3,4,5,6-Tetraphenyl-2,2´-bipyridine
Sarath D. Perera
Abstract:Treatment of the ligand 3,4,5,6-tetraphenyl-2,2´-bipyridine (LH) VIII with HAuCl4 in acetonitrile afforded the cyclometallated square-planar Au(III) complex [LAuCl]ClO4 (7) containing the anionic tridentate (N∧N∧C) ligand, via orthometallation. Treatment of (7) with 4-dimetylaminopyridine (DMAP) and AgClO4 in acetonitrile produced [LAu(DMAP)][ClO4]2 (8), showing the same coordination mode. Analogous complex [LAu(PPh3)][ClO4]2 (9)was prepared by using PPh3 instead of DMAP. Reaction of VIIIwith HAuCl4 at room te… Show more
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