Abstract
A study of the PMR spectra of 1,1-dioxomolybdatranic acids makes it possible to propose prototropic isomerization of their molecules in solutions, during which the Mo←O coordinate bond is redistributed between the three oxygen atoms of the 2-hydroxyethyl groups, thereby averaging the three-dimensional and electronic structures of each of the atrane half rings. This sort of rearrangement is a bimolecular process, and its rate-determining step proves to be attack on the convalently bonded (with the molybdenum atom) oxygen by a solvated proton. The rate of isomerization depends substantially on the proton-acceptor capacity of the solvent.
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See [6] for communication XXXV.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 618–621, May, 1974.
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Voronkov, M.G., Lapsinya, A.F. & Pestunovich, V.A. Atranes. Chem Heterocycl Compd 10, 535–537 (1974). https://doi.org/10.1007/BF00471321
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DOI: https://doi.org/10.1007/BF00471321