Hindered rotation of ligands in cis-[PtR2Cl2] complexes |
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| Authors: | V S Bondarenko E D Korniets B A Sokolenko N B Kovrova |
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| Institution: | (1) Institute of Chemistry and Chemical-Metallurgical Processes, Siberian Branch of Russian Academy of Sciences, Akademgorodok, 660049 Krasnoyarsk, Russian Federation |
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| Abstract: | The temperature dependence of the1H NMR spectra ofcis-Pt(II)R2Cl2] complexes was studied in DMSO at 18–100°C (R is 2-methyl and 2,5-dimethylpyridine). The broadening of the signals from the methyl groups or hydrogen atoms in theortho-positions of heteroaromatic ligands is due to the coexistence of two forms of thecis-complexes in solution. These forms arise from the hindered rotation of asymmetrical ligands around the Pt-N bond.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 424–425, February, 1993. |
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| Keywords: | platinum(II) cis-complexes 1H NMR spectra temperature dependence asymmetrical ligands hindered rotation |
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