1330777-07-5Relevant articles and documents
Nickel(II) tri-tert-butoxysilanethiolates with N-heterocyclic bases as additional ligands: Synthesis, molecular structure and spectral studies
Ponikiewski, Lukasz,Pladzyk, Agnieszka,Wojnowski, Wieslaw,Becker, Barbara
, p. 2400 - 2405 (2011)
Three heteroleptic, neutral nickel(II) tri-tert-butoxysilanethiolates with monodentate heterocyclic bases (pyridine, 2-methylpyridine and 3,5-dimethylpyridine) serving as additional ligands have been prepared following the same synthetic procedure. The complexes were characterized by single crystal X-ray structure determination and elemental analysis. For complexes 1 and 2, FT-IR and UV-Vis spectroscopy have been additionally recorded. Three different coordination motifs have been observed in these complexes. Molecules building tetragonal crystals of [Ni{SSi(OtBu)3} 2(C5H5N)] (1) feature Ni(II) coordinated by two S,O-chelating tri-tert-butoxysilanethiolato residues and one N atom of pyridine in a strongly distorted trigonal bipyramidal environment. The complex [Ni{SSi(OtBu)3}2(C6H 7N)2] (2) forms triclinic crystals and its core atoms adopt a planar geometry with Ni(II) in the middle of the N2S 2 plane. Molecules of complex [Ni{SSi(OtBu) 3}2(C7H9N)2(H 2O)] (3) form orthorhombic crystals with penta-coordinated Ni(II) in a distorted tetragonal pyramidal NiN2OS2 environment. Complex 2 roughly mimics one of the two metal centers in the active site of the ACS/CODH enzyme.