A 31P NMR study of ligand substitution in heterometallic Ru/Zn complexes |
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| Authors: | G. A. Kostin A. O. Borodin S. V. Tkachev N. V. Kuratieva |
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| Affiliation: | (1) Nuclear and Analytical Chemistry Laboratory, Department of Chemistry, Burdwan University, Golapbag, Burdwan, 713 104, India |
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| Abstract: | Based on the 31P NMR data, equilibriums in the [RuNO(NO2)4OHZn(TPPO)3]-Py system are quantitatively described, and equilibrium constants of dissociation of the initial complex and organic ligand substitution are determined. The stability of heterometallic complexes is found to increase in passing from TPPO to pyridine. The mixed ligand [RuNO(NO2)4OHZn(TPPO)2Py] complex is structurally characterized, and it is shown that the TPPO molecule in the trans-position to the μ2-bridging hydroxo group is substituted first. |
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