Ni(II)- und Ni(III)-Komplexe mit dem fünfzähnigen Thioether- Thiolat-Amin-Liganden 'NMeS4'2_ ('NMeS4'2_ = Dianion von 2,2'-Bis(2-mercaptophenylthio)diethylmethylamin) Transition Metal Complexes with Sulfur Ligands, CV* Ni(II) and Ni(III) Complexes with the Pentadentate Thioether- Thiolate-Amine-Ligand 'N MeS4'2_ ('N MeS4'2- = Dianion of 2.2'-Bis(2-mercaptophenylthio)diethylmethylamine)

Paramagnetic [Ni('NMeS4')]2 1 ('N MeS4'2_ = 2.2'-Bis(2-mercaptophenylthio)diethylmethylam in e(2-)) was synthesized from N i(ac)2 and Na2-'N MeS4' and characterized by X-ray structure analysis. In solid state, 1 contains two pseudo-octahedral [N i('N MeS4')] fragments bridged via thiolate donors. In contrast to the parent complex [N i('N HS4')]2, the thiolate and thioether donors coordinate cis to the Ni center forming meso [N i('N MeS4')] fragments of Cs symmetry. 1 readily dissociates in solution to give mononuclear [N i('N MeS4')]. Reaction of [Ni('NMeS4')]2 1 with PMe3 yielded [Ni(PM e3)('N MeS4')] 2, oxidation by io­ dine gave the Ni(III) complex [N i(I)('N MeS4')] 3. Ubergangsmetallkomplexe mit Schwefel-Liganden, CY*