753027-55-3Relevant academic research and scientific papers
Molybdenum and tungsten η2-alkyne-1-thio complexes acting as sulfur donors in homoleptic werner type complexes with nickel(II) and palladium(II)
Seidel, Wolfram W.,Ibarra Arias, Maria D.,Schaffrath, Markus,Jahnke, Mareike C.,Hepp, Alexander,Pape, Tania
, p. 4791 - 4800 (2006)
Facile access to the η2-alkyne-1-thio complexes [Tp‰M(CO)2{η2-(BnS)CC(S)}] (Tp′ = hydrotris(3,5-dimethylpyrazolyl)-borate; Bn = benzyl; M = Mo, W) by reductive removal of one benzyl group in the corresponding bis(benzylthio)-acetylene complexes, [Tp′M(CO)2{η2-(BnS)CC(SBn)}](PF 6), has been thoroughly investigated. Experimental evidence of the intermediates, [Tp′M(CO)2{η2-(BnS)CC(SBn)}] (M = Mo, W), and the fate of the cleaved benzyl group by isolation of the byproduct, [Tp′W(CO){C(O)Bn}{η2-(BnS)CC(SBn)}], is provided. Neutral η2-alkyne-1-thio complexes [Tp′M(CO)2{η 2-(BnS)CC(S)}] bearing a free terminal sulfur atom have been established as monodentate ligands L in homoleptic pentanuclear [M′L 4]2+ complexes with nickel(II) and palladium(II). Comparison of the NMR and IR spectroscopic as well as cyclovoltammetric data of the heterobimetallic complexes with the free thio-alkyne complexes reveals a strong electronic coupling of the redox-active η2-CC-bound metal centers and the sulfur-coordinated metal ion.
A neutral tungsten-η2-alkyne-1-thio ligand forming a homoleptic Werner type complex with Cu(I)
Seidel, Wolfram W.,Ibarra Arias, Maria D.,Schaffrath, Markus,Bergander, Klaus
, p. 2053 - 2054 (2004)
The 1-thio-η2-alkyne-complex [Tp′ (CO) 2W(BnSCCS)] [Tp′ = hydrotris(3,5-dimethylpyrazolyl)borate; Bn = benzyl], which was obtained by reductive removal of the benzyl group at the alkyne complex [Tp′(CO)2W(BnSCCSBn)]PF6, has been established as a ligand in a combined organometallic/Werner type heterobimetallic complex with Cu(I).
