Abstract
It was established by x-ray diffraction analysis that the crystalline title compound exists as a dimer formed by two paired potassium ions bonded to the oxygen atoms of the carboxy group and the coordinated oxygen atoms of the carbonyl groups. The solvate of the dimer with the composition 2C18H22NO4K·3H2O·CH3COCH3 is the crystallochemically independent structural unit. A shift of the electron density toward the carbonyl groups and the formation of a strong hydrogen bond between NH and the oxygen atom of the carboxylate group are observed.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 666–672, May, 1980.
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Bundule, M.F., Bisenieks, É.A., Kemme, A.A. et al. Preparation, molecular-crystal structure, and chemical peculiarities of the potassium salt of 3,3,6,6-tetramethyl-1,8-dioxo-1,2, 3,4,5,6,7,8,9,10-decahydroacridine-9-carboxylic acid. Chem Heterocycl Compd 16, 519–525 (1980). https://doi.org/10.1007/BF00561352
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DOI: https://doi.org/10.1007/BF00561352