Abstract
A 1:4 diaqua(benzo-15-crown-5)(perchlorato-O)calcium perchlorate and diaqua(4′-nitrobenzo-15-crown-5)(perchlorato-O)calcium solid solution [Ca(ClO4)L⋅H2O)2]+ClO −4 [L = (B15C5)0.2(4′-NO2-B15C5)0.8] was prepared and studied by X-ray diffraction. The complex cation [Ca(ClO4)L(H2O)2]+ is of the guest-host type. The coordination polyhedron of its Ca2+ cation is irregular, viz. a distorted prism with two different bases: pentagonal (of five ether oxygen atoms of mixed crown ligand L) and trigonal (of one oxygen atom of the anionic ligand ClO −4 and two oxygen atoms of the two water molecules). The packing of the complex cations and disordered ClO −4 anions in the crystal structure of this solid solution was determined to find that these ions are connected by hydrogen bonds into infinite three-dimensional layers.
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Translated from Zhurnal Obshchei Khimii, Vol. 74, No. 8, 2004, pp. 1244–1249.
Original Russian Text Copyright © 2004 by Chekhlov.
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Chekhlov, A.N. Preparation and crystal structure of a 1:4 diaqua(benzo-15-crown-5)(perchlorato-O)calcium perchlorate and diaqua(4′-nitrobenzo-15-crown-5)(perchlorato-O)calcium perchlorate solid solution. Russ J Gen Chem 74, 1150–1155 (2004). https://doi.org/10.1007/s11176-005-0128-y
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DOI: https://doi.org/10.1007/s11176-005-0128-y