Conclusions
Atom-atom potential function calculations show that the (OCH3)nE(O)(CH3)3−n (E=P, As; n=1, 2, 3) molecules should exist as conformational equilibria, the conformational behavior of the organoarsenic compounds being similar to that of the organophosphorus compounds. The barriers for rotation around the As-O bond are exceptionally low.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1289–1292, June, 1981.
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Shagidullin, R.R., Plyamovatyi, A.K. & Avvakumova, L.V. Use of atom-atom potential functions for determining the conformations of organoarsenic compounds. Russ Chem Bull 30, 1023–1025 (1981). https://doi.org/10.1007/BF00950285
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DOI: https://doi.org/10.1007/BF00950285