REACTIONS OF DICHLORO[2-(DIMETHYLAMINOMETHYL)PHENYL-C-1,N] GOLD(III),[AU(DAMP-C-1,N)CL-2], WITH AROMATIC THIOSEMICARBAZONES - STRUCTURES AND SPECTROSCOPICAL DATA OF THE FIRST GOLD(III) THIOSEMICARBAZONE COMPLEXES

The reaction between dichloro[2-( dimethylaminomethyl) phenyl-C-1,N] g old(LII), [Au(damp-C-1,N)Cl-2] and the thiosemicarbazones of 2-acetylp yridine (HAPTSC) or 4-hydroxy-3-methoxybenzaldehyde, vanilline (HVTSC) leads to the formation of the first gold(III) thiosemicarbazone compl exes. The reactions occur under cleavage of the Au-N bond and protonat ion of the amino group. The heterocyclic tridentate ligand HAPTSC bind s to gold by formation of two five-membered rings, the bidentate ligan d HVTSC by formation of one five-membered ring. Crystal structures and spectroscopical data of the novel complexes are discussed. (C) 1998 E lsevier Science S.A. All rights reserved.