0181447 - UFCH-W 20020114 RIV CH eng J - Článek v odborném periodiku
Knödler, A. - Kaim, W. - Jain, V. K. - Záliš, Stanislav
Dimethylplatinum(II) and Tetramethylplatinum(IV) Complexes of 1-Methyl-(2-alkylthiomethyl)-1H-benzimidazoles: Experimental and DFT-Calculated Structures and NMR Spectra.
Journal of Organometallic Chemistry. Roč. 655, 1/2 (2002), s. 218-226. ISSN 0022-328X. E-ISSN 1872-8561
Grant CEP: GA MŠMT OC D14.20
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: platinum compounds * benzimidazole ligands * NMR spectroscopy
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 1.901, rok: 2002

The compounds (L)PtMen where n = 2 or 4 and L = mmb (1-methyl-(2-methylthiomethyl)-1H-benzimidazole) or L = mtb (1-methyl-(2-tert-butylthiomethyl)-1H-benzimidazole) were characterized by X-ray crystallography (except for (mtb)PtMe2) and by H-1- and Pt-195-NMR spectroscopy. The tetramethylplatinum(IV) complexes exhibit a variable degree of dynamic H-1-NMR behavior due to the mobility at the thioether sulfur atom in the non-planar five-membered chelate ring, as supported by structural analysis. Density-functional theory (DFT) calculations were used to reproduce the structural features and the H-1-NMR chemical shifts. In comparison with other late transition metal complexes of these N-S chelate ligands the Me4Pt and especially the Me2Pt compounds exhibit a relatively stronger preference of the metal for the sulfur donor.
Trvalý link: http://hdl.handle.net/11104/0078016