X-ray study of rhodium(III) sulfates |
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Authors: | S N Vorob’yova I A Baidina A V Alekseev A V Belyaev |
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Institution: | (1) Moscow State University, Vorob'evy gory, Moscow, 119899, Russia |
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Abstract: | Compounds with compositions Rh(H2O)6]2(SO4)3·4H2O (I), (H3O)Rh(H2O)6](SO4)2 (II), Rh(H2O)5OH](SO4)·0.5H2O (III), and Rh(H2O)6]2(SO4)·(H2SO4) x ·5H2O (IV) have been studied. The crystal structures of II, III, and IV were determined. All compounds crystallized in the monoclinic crystal system. Crystal data for II: a = 7.279(2) Å, b = 10.512(7) Å, c = 15.806(3) Å, β = 96.71(3)°, space group P21/n, Z = 2, d calc = 2.334 g/cm3; III: a = 20.433(4) Å, b = 7.820(2) c = 11.215(2) Å, β = 114.14(1)°, space group C2/c, Z = 8, d calc = 2.559 g/cm3; IV: a = 6.2250(4 Å), b = 27.0270(12) Å, c = 7.2674(5) Å, β = 97.04(3)°, space group P21/c, Z = 4, d calc = 2.143 g/cm3. The compounds were studied by IR spectroscopy and powder X-ray diffraction. All of the isolated crystalline phases are sparingly soluble in ethanol and well soluble in water. |
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