From discrete to extended guests: A novel supramolecular [Hg6As4](AgCl3)(2) assembly featuring one-dimensional (AgCl3)(2-) anionsстатья
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Аннотация:A novel supramolecular assembly [Hg6As4](AgCl3)(2) has been prepared and its structure determined. It crystallizes in the monoclinic system, space group I2/a (no. 15), with the unit-cell dimensions a = 14.690(1), b = 9.1851(7), c = 20.285(1) Angstrom, beta = 93.17(1)degrees, and Z = 4. The crystal structure comprises a three-dimensional cationic host framework, [Hg6As4](4+), built of mercury and arsenic atoms and one-dimensional (1)(infinity)(AgCl3)(2-) guest anions built of corner-sharing [AgCl4] tetrahedra. The title compound is the first example of a perfectly ordered supramolecular architecture having an infinite chain anion as a guest moiety embedded into a mercury-pnicogen cationic framework. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.