Gold(III) derivatives with anionic oxygen ligands: mononuclear hydroxo, alkoxo and acetato complexes. Crystal structure of [Au(bpy)(OMe)(2)][PF6]
Academic Article
Publication Date:
2000
Short description:
Gold(III) derivatives with anionic oxygen ligands: mononuclear hydroxo, alkoxo and acetato complexes. Crystal structure of [Au(bpy)(OMe)(2)][PF6] / Cinellu, M.A., Minghetti, G., Pinna, M.v., Stoccoro, S., Zucca, A., Manassero, M.. - In: DALTON. - ISSN 1470-479X. - 8(2000), pp. 1261-1265. [10.1039/a910188h]
abstract:
A variety of gold() adducts having σ-ligated oxygen-donor ligands have been prepared from [Au(bpy)Cl2][PF6] 1
(bpy = 2,2-bipyridine) either by partial or total replacement of the chloride ions. The new species comprise hydroxo,
[Au(bpy)(OH)Cl][PF6] 2 and [Au(bpy)(OH)2][PF6] 3, oxo, [Au2(bpy)2(μ-O)2][PF6]2 4, acetato, [Au(bpy)(O2CMe)2][PF6]
5, and alkoxo complexes, [Au(bpy)(OR)Cl][PF6] 6, 7 and [Au(bpy)(OR)2][PF6] 8–10 (R = Me 6 and 8; Et 7 and 9;
Pri 10). The dihydroxo and the oxo complexes can be interconverted by refluxing the former in anhydrous THF and
the latter in water. The hydroxides 2 and 3 and the acetato complex 5 undergo σ-ligand metathesis in ROH solution
(R = Me, Et or Pri) to give the corresponding alkoxides. The crystal structure of 8, the first of a gold() methoxo
complex, has been determined by X-ray diffraction analysis
(bpy = 2,2-bipyridine) either by partial or total replacement of the chloride ions. The new species comprise hydroxo,
[Au(bpy)(OH)Cl][PF6] 2 and [Au(bpy)(OH)2][PF6] 3, oxo, [Au2(bpy)2(μ-O)2][PF6]2 4, acetato, [Au(bpy)(O2CMe)2][PF6]
5, and alkoxo complexes, [Au(bpy)(OR)Cl][PF6] 6, 7 and [Au(bpy)(OR)2][PF6] 8–10 (R = Me 6 and 8; Et 7 and 9;
Pri 10). The dihydroxo and the oxo complexes can be interconverted by refluxing the former in anhydrous THF and
the latter in water. The hydroxides 2 and 3 and the acetato complex 5 undergo σ-ligand metathesis in ROH solution
(R = Me, Et or Pri) to give the corresponding alkoxides. The crystal structure of 8, the first of a gold() methoxo
complex, has been determined by X-ray diffraction analysis
Iris type:
1.1 Articolo in rivista
Keywords:
gold(III) compounds; oxygen ligands; 2,2'-bipyridine
List of contributors:
Cinellu, Maria Agostina; Minghetti, G; Pinna, Mv; Stoccoro, Sergio; Zucca, A; Manassero, M.
Published in: