The effect of the solvent upon the rates and machanisms of organometallic reactions: VII. A 19F NMR study of complexation of CF3 HgX (X = Cl,I, OCOCF3) |
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Authors: | V.S Petrosyan V.I Bakhmutov O.A Reutov |
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Affiliation: | Chemistry Department, M. V. Lomonosov State University, Moscow B-234 U.S.S.R. |
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Abstract: | The concentration and temperature dependence of J(199HgC19F) for solutions of CF3HgX (X = Cl, I, OCOCF3) in various solvents shows that in inert solvents these molecules exist mainly as non-solvent dimers (X = I or OCOCF3) or as monomers (X = Cl). In strongly coordinated solvents complexes are largely formed from CF3HgX and the electron-donating solvent molecules. In pyridine solution an equilibrium exists between the and complexes. Complexes of the type CF3HgX·D are T-shaped and have a higher relative content of s-electrons in the HgCF group compared with tetrahedral CF3HgX·2D complexes. |
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