Synthesis and 197Au-Mössbauer spectroscopic studies of dihalo(pentafluorophenyl)(bidentate ligand)gold(III) complexes |
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| Authors: | Rafael Usón Antonio Laguna María U De La Orden RV Parish Laila S Moore |
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| Institution: | Departamento de Química Inorgánica, Universidad de Zaragoza. Zaragoza, Spain;Department of Chemistry, The University of Manchester, Institute of Science and Technology, Manchester M60 1QD Great Britain |
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| Abstract: | Addition of a bidentate ligand (LL = 1,10-phenanthroline, o-phenylenebis(dimethylarsine)) to solutions of Au(C6F5)X2(tht) (X = Cl, Br; tht = tetrahydrothiophene) leads to potentially five-coordinate gold(III) derivatives. 197Au Mössbauer spectroscopy points, however, to four-coordinate square-planar complexes with a weak penta-coordination in the phen-containing derivatives. The complexes react with AgClO4 to give four-coordinate cationic complexes of the types Au(C5F5)X(LL)]ClO4 or Au(C6F5)(PPh3)(LL)](ClO4)2. |
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