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Journal of Structural Chemistry

2015 year, number 8

CRYSTAL STRUCTURE OF [Rh(H2O)5Cl](C7H7O3S)2 AND Cs[Rh(H2O)5NO3](C7H7O3S)3xH2O

S. N. Vorobieva1,2, I. A. Baidina1, A. V. Belyaev1, I. V. Korolkov1,2, N. I. Alferova1
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk National Research State University, Novosibirsk, Russia
Keywords: родий, ацидопентааквакомплексы, координационные соединения, кристаллическая структура, rhodium, acido-penta-aqua complexes, coordination compounds, crystal structure

Abstract

The crystal structures of the compounds with the composition [Rh(H2O)5Cl](C7H7O3S)2 (I) and Cs[Rh(H2O)5NO3](C7H7O3S)3×H2O (II) are determined. Crystallographic data for I: a = 10.063(10) Å, b = 7.771(8) Å, c = 13.524(15) Å; b = 100.44(3)°, space group P 21, Z = 2, d calc = 1.823 g/cm3; for II: a = 16.221(3) Å, b = 9.646(19) Å, c = 21.307(4) Å, b = 92.06(3)°, space group P 21, Z = 8, d calc = 1.833 g/cm3. The compounds are characterized by IR spectroscopy and powder X-ray diffraction. The rhodium atoms have a distorted octahedral environment consisting of five oxygen atoms of coordinated water molecules and one chloride ion (I)/oxygen atom of the nitrate ion (II) with the following distances: Rh-OH2O of 1.993-2.075 Å and Rh-Cl of 2.270 Å for I; Rh-OH2O of 1.996-2.031 Å and Rh-ONO3 of 1.990 Å for II.