Copper(II) perrhenate Cu(C3H7OH)2(ReO4)2: Synthesis from isopropanol and CuReO4
, structure and properties

Mikhailova, D.; Engel, J. M.; Schmidt, M.; Tsirlin, A. A.; Ehrenberg, H.

doi:10.1016/j.jssc.2015.08.042

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Copper(II) perrhenate Cu(C₃H₇OH)₂(ReO₄)₂: Synthesis from isopropanol and CuReO₄, structure and properties

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Mikhailova, D.
Daria Mikhailova, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schmidt, M.
Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Mikhailova, D., Engel, J. M., Schmidt, M., Tsirlin, A. A., & Ehrenberg, H. (2015). Copper(II) perrhenate Cu(C₃H₇OH)₂(ReO₄)₂: Synthesis from isopropanol and CuReO₄, structure and properties. Journal of Solid State Chemistry, 232, 264-269. doi:10.1016/j.jssc.2015.08.042.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-1D75-E

Abstract

The crystal structure of Cu+Re7+O4 is capable of a quasi-reversible incorporation of C3H7OH molecules. A room-temperature reaction between CuReO4 and C3H7OH under oxidizing conditions leads to the formation of a novel metal-organic hybrid compound Cu2+(C3H7OH)(2)(ReO4)(2). Upon heating under reducing conditions, this compound transforms back into CuReO4, albeit with ReO2 and metallic Cu as by-products. The crystal structure of Cu(C3H7OH)(2)(ReO4)(2) solved from single-crystal X-ray diffraction (Pbca, a = 10.005 (3) angstrom, b = 7.833(2) angstrom, and c = 19.180(5) angstrom) reveals layers of corner-sharing CuO6-octahedra and ReO4-tetrahedra, whereas isopropyl groups are attached to both sides of these layers, thus providing additional connections within the layers through hydrogen bonds. Cu(C3H7OH)(2)(ReO4)(2) is paramagnetic down to 4 K because the spatial arrangement of the Cu2+ half-filled orbitals prevents magnetic superexchange. The paramagnetic effective moment of 2.0(1) mu(B) is slightly above the spin-only value and typical for Cu2+ ions. (C) 2015 Published by Elsevier Inc.