Complexes of copper(I) acetate. Part I. Complexes with σ-donor ligands

Abstract

Reactions of copper(I) acetate with various nitrogen-, phosphorus-, arsenic-, sulphur-, and selenium-donor ligands have been studied. With unidentate donors, either [Cu(O₂CMe)L₃](L = thiourea or selenourea) or [Cu(O₂CMe)L₂](L = Ph₃P or imidazoline-2-thione) are formed. With the bidentate donors, 1,10-phenanthroline, 2,9-dimethyl-1,10-phenanthroline. Ph₂PCH₂PPh₂, Ph₂PCH₂CH₂PPh₂(dppe), or Ph₂AsCH₂CH₂AsPh₂(dpae) complexes of the type [Cu(O₂CMe)(bidentate)] can be isolated. With dppe and dpae further complexes may be produced by varying the reaction conditions, viz. [{Cu(O₂CMe)}₂(dppe)₃] and its benzene solvate, and [Cu(O₂CMe)(dpae)₂]. A further type, [{Cu(O₂CMe)}₂(bidentate)], thought to involve bridging ligand molecules, has been isolated using 2,5-dithiahexane or 2,2′-bipyridyl.