Dimethylplatinum(II) and tetramethylplatinum(IV) complexes of 1-methyl-(2-alkylthiomethyl)-1H-benzimidazoles: Experimental and DFT-calculated structures and NMR spectra
(L)PtMen where n = 2, 4; L = mmb = 1-methyl-(2-methylthiomethyl)-1H-benzimidazole, mtb = 1-methyl-(2-tert-butylthiomethyl)-1H-benzimidazole were characterized by x-ray crystallog. except for (mmb)PtMe2 and by 1H and 195Pt NMR spectroscopy. The tetramethylplatinum(IV) complexes exhibit a variable degree of dynamic 1H NMR behavior due to the mobility at the thioether S atom in the nonplanar five-membered chelate ring, as supported by structural anal. D.-functional theory (DFT) calcns. were used to reproduce the structural features and the 1H NMR chem. shifts. In comparison with other late transition metal complexes of these N-S chelate ligands the Me4Pt and esp. the Me2Pt compds. exhibit a relatively stronger preference of the metal for the S donor. on SciFinder(R)
%0 Journal Article
%1 Knodler.2002
%A Knodler, Axel
%A Kaim, Wolfgang
%A Jain, Vimal K.
%A Zalis, Stanislav.
%D 2002
%J Journal of Organometallic Chemistry
%K NMR;crystal alkylthiomethyl benzimidazole chelate chelate;mol fluxionality methyl mol optimized platinum prepn prepn;DFT proton structure
%N 1-2
%P 218--226
%R 10.1016/S0022-328X(02)01564-4
%T Dimethylplatinum(II) and tetramethylplatinum(IV) complexes of 1-methyl-(2-alkylthiomethyl)-1H-benzimidazoles: Experimental and DFT-calculated structures and NMR spectra
%V 655
%X (L)PtMen where n = 2, 4; L = mmb = 1-methyl-(2-methylthiomethyl)-1H-benzimidazole, mtb = 1-methyl-(2-tert-butylthiomethyl)-1H-benzimidazole were characterized by x-ray crystallog. except for (mmb)PtMe2 and by 1H and 195Pt NMR spectroscopy. The tetramethylplatinum(IV) complexes exhibit a variable degree of dynamic 1H NMR behavior due to the mobility at the thioether S atom in the nonplanar five-membered chelate ring, as supported by structural anal. D.-functional theory (DFT) calcns. were used to reproduce the structural features and the 1H NMR chem. shifts. In comparison with other late transition metal complexes of these N-S chelate ligands the Me4Pt and esp. the Me2Pt compds. exhibit a relatively stronger preference of the metal for the S donor. on SciFinder(R)
@article{Knodler.2002,
abstract = {(L)PtMen where [n = 2, 4; L = mmb = [1-methyl-(2-methylthiomethyl)-1H-benzimidazole], mtb = [1-methyl-(2-tert-butylthiomethyl)-1H-benzimidazole]] were characterized by x-ray crystallog. [except for (mmb)PtMe2] and by 1H and 195Pt NMR spectroscopy. The tetramethylplatinum(IV) complexes exhibit a variable degree of dynamic 1H NMR behavior due to the mobility at the thioether S atom in the nonplanar five-membered chelate ring, as supported by structural anal. D.-functional theory (DFT) calcns. were used to reproduce the structural features and the 1H NMR chem. shifts. In comparison with other late transition metal complexes of these N-S chelate ligands the Me4Pt and esp. the Me2Pt compds. exhibit a relatively stronger preference of the metal for the S donor. [on SciFinder(R)]},
added-at = {2019-07-15T13:41:23.000+0200},
author = {Knodler, Axel and Kaim, Wolfgang and Jain, Vimal K. and Zalis, Stanislav.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2ec7efaa82274be84cf2fbf9f7c1025ea/b_schwederski},
doi = {10.1016/S0022-328X(02)01564-4},
interhash = {b799683a904c272023c1d468b6a2a91c},
intrahash = {ec7efaa82274be84cf2fbf9f7c1025ea},
journal = {Journal of Organometallic Chemistry},
keywords = {NMR;crystal alkylthiomethyl benzimidazole chelate chelate;mol fluxionality methyl mol optimized platinum prepn prepn;DFT proton structure},
number = {1-2},
pages = {218--226},
timestamp = {2019-07-15T11:42:10.000+0200},
title = {Dimethylplatinum(II) and tetramethylplatinum(IV) complexes of 1-methyl-(2-alkylthiomethyl)-1H-benzimidazoles: Experimental and DFT-calculated structures and NMR spectra},
volume = 655,
year = 2002
}
