Übergangsmetallkomplexe mit Schwefelliganden, LXXVIII. H+-, Lewis-Säure-Basen- und Ligandentransferreaktionen von Thioether-Thiolat-Nickelkomplexen. Röntgenstrukturanalysen von [Mo(O)(′OS4′ )] und [Mo(O)(′NhS4′)]/Transition Metal Complexes with Sulfur Ligands, LXXVIII. H+-, Lewis Acid-Base and Ligand Transfer Reactions of Thioether-Thiolato-Nickel Complexes. X-Ray Structure Determinations of [Mo(O)('OS4')] and [Mo(O)('NHS4')]
In order to elucidate specific properties of nickel sulfur complexes, reactions of recently synthesized [Ni('S5')], [Ni('OS4')]2, [Ni('NHS4')]2, [Ni('S4-C5')]2 and [Ni('S4-C3')] were investigated ('OS4'2- = 2,2'-bis(2-mercaptophenylthio)diethylether(2-), 'NHS4'2- = 2,2'-bis(2-mercaptophenylthio)diethylamine(2-), 'S5'2- = 2,2'-bis(2-mercaptophenylthio)diethylsulfide(2-), 'S4-C5'2- = 1,5-bis(2-mercaptophenylthio)pentane(2-), 'S4-C3'2- = 1,3-bis(2-mercaptophenylthio)propane(2-)).Reactions with proton acids, CH3COCl and cyanide led to de-coordination of the sulfur ligands, thus providing a convenient synthesis of multidentate thioether-thiolate ligands.The reactions of these Ni complexes with metal salts or metal complexes led to ligand transfer from nickel to Pd(II), Mo(IV ) and Hg(II), [Pd('S4-C3')], [Hg('S5')], [Hg('S4-C3')]. [Hg('S4-C5')], [Mo(O)('S5')], [Mo(O)('NHS4')] and [Mo(O)('OS4')] were synthesized by this method. X-ray structure analysis proved that [Mo(O)('OS4')] and [Mo(O)('NHS4')] have a pseudooctahedral Mo coordination with cis-thiolate atoms and trans-ether or amine and oxogroup donors.Template alkylation of [Fe(CO)2(S2C6H4)2]2- by 3-(N, N-bis-(2-bromoethyl)-amino)-propionic acid methyl ester leads to a multidentate ligand that contains functional groups in the side chain.