ChemInform Abstract: Cu₃(SeO₄)₂(SeO₃OH)₂ (H₂O)₁₆ — The First Example of a Linear Octahedral—Tetrahedral Heptamer in Inorganic Compounds.

Abstract

Cu 3(SeO4)2(SeO3OH)2(H2O)16 -The First Example of a Linear Octahedral--Tetrahedral Heptamer in InorganicCompounds. -Single crystals of the new copper selenate Cu 3(SeO4)2(SeO3OH) 2(H2O)16 are obtained by hydrothermal reaction of an aqueous solution of (UO2)NO3, Cu(NO3)2, and H2SeO4 (autoclave, 180 C, 72 h) followed by slow solvent evaporation. The compound crystallizes in the triclinin space group P1 with Z = 1. The title heptamers are formed by successive polymerization of two SeO 3OH tetrahedra, two SeO4 tetrahedra, and three Cu(H2O)4O2 octahedra. The octahedra and tetrahedra are linked in trans-configuration which is in agreement with the Jahn-Teller distortion of the octahedral coordination geometry of Cu 2+ . -(GURZHIY, V. V.; AL-SHURAY, A.; BRITVIN, S. N.; KRIVOVICHEV*, S. V.; Eur. J. Inorg. Chem. 2015, 32, 5311-5313, http://dx.