Substitution effect of or (R = CH3, C2H5) groups on the 119Sn and 1H NMR spectra of (CH3)4-nSn(OR)n compounds;m evidence for a polymeric structure |
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| Authors: | EV Van Den Berghe GP Van Der Kelen |
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| Institution: | Laboratory for General and Inorganic Chemistry-B, University of Ghent, Krijgslaan 271, B-9000 GhentBelgium |
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| Abstract: | We investigated the 1H and 119Sn NMR spectra of (CH3)4-nSn(OR)n (n = 1, 2, 3; R = CH3, C2H5) compounds. The different NMR parameters could not be interpreted with the aid of normal substitution effects based upon electronegativity considerations of the substituents. However, structural changes caused by polymerization could provide a rational explanation of the special NMR behaviour of these compounds. |
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