Molecular structures of compounds formed by benzo-15-crown-5 with calcium salts |
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| Authors: | O. A. Raevskii V. V. Tkachev L. O. Atovmyan V. E. Zubareva |
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| Affiliation: | (1) Institute for Physiologically Active Substances, USSR Academy of Sciences, USSR;(2) Division of the Institute of Chemical Physics, USSR Academy of Sciences, Moscow;(3) Chemical Institute, Moldavian Academy of Sciences, Kishinev |
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| Abstract: | X-ray structural and spectroscopic results are given on the compound formed by benzo-15-crown-5 with calcium perchlorate, Ca(ClO4)2·C14H20O5·2H2O; the combination does not involve any substantial change in the dihedral angles in the macrocycle, as the coordination sphere is constructed as a result of supplementing the positions occupied by the macrocycle oxygen atoms with three other atoms (oxygen atoms from the perchlorate group and two water molecules). The results are compared with published data on the structures of the compounds formed by benzo-15-crown-5 with NaClO4, Mg(NCS)2, CuCl2, Ca(NCS)2 and Ca(3,5-dinitrobenzoate)2.Translated from Teoreticheskaya i Éksperimental' naya Khimiya, Vol. 24, No. 2, pp. 242–247, March–April 1988. |
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