70423-99-3Relevant articles and documents
Multiple isomerism (cis/trans; syn/anti) in [(dmso) 2Pt(aryl)2] complexes: A combined structural, spectroscopic, and theoretical investigation
Klein, Axel,Schurr, Thilo,Knoedler, Axel,Gudat, Dietrich,Klinkhammer, Karl-Wilhelm,Jain, Vimal K.,Zalis, Stanislav,Kaim, Wolfgang
, p. 4125 - 4131 (2008/10/09)
The occurrence of cis or trans configurations in square planar diarylbis(dimethyl sulfoxide)-platinum(II) complexes with S-bonded dmso ligands and aryl = 2,3,4,5,6-pentamethylphenyl, 2,4,6-trimethylphenyl, 2,6-dimethylphenyl, 2-, 3-, and 4-methylphenyl, and phenyl has been investigated by multinuclear (1H, 13C, and 195Pt) NMR spectroscopy and crystal structure analysis. Both methods confirm the cis configuration for complexes with the smaller phenyl and methylphenyl (tolyl) ligands and the trans configuration for the compounds with the bulkier ligands, starting from 2,6-dimethylphenyl. Spectroscopic criteria could thus be established to identify configurational isomers. For the 2-tolyl complex an additional kind of isomerism arises from the relative orientation of the two methyl substituents on the same side (syn) or on different sides of the coordination plane (anti). 2D-NMR spectroscopy allowed us to identify the conformers and to study isomerization mechanisms. DFT calculation results agree well with the experimental structures and with the spectroscopic data.
Synthesis of Platinum(II) Alkyl and Aryl Complexes from K2 and Tetraorganotin Compounds in Dimethyl Sulphoxide
Eaborn, Colin,Kundu, Kalipada,Pidcock, Alan
, p. 933 - 938 (2007/10/02)
Complexes cis- and cis-(dmso=dimethyl sulphoxide) are readily obtained from K2 and SnMe3R (R=aryl or Me) in dmso at 70-90 deg C.Hydrogen-1 n.m.r. spectra show that the dmso ligands are bound through sulphur in solution an
