Abstract

Abstract : A monomeric hexachlorocuprate (II) ion has been found in the compound (3- chloroanilinium)8(CuCl6)Cl4, CuC48H56Cl18N8. The compound crystallizes in the triclinic space group Pl with unit cell dimensions a = 8.5488 (16) Angstroms, b = 13.964 (6) Angstroms, c = 14.273 (7) Angstroms alpha = 90.46 (4), beta = 107.82 (3)Angstroms, and gamma = 102.11 (3)Angstroms, with Z - 1. The coordination about the discrete (CuCl6)4- ion is that of a tetragonally compressed octahedron with bond distances Cu-Cl (1) = 2.2773 (11) Angstroms, Cu- Cl(2) - 2.6061(18) Angstroms, and Cu-Cl(3) - 2.6086(20) Angstroms. The two short bond distances are on the order frequently seen for copper-chloride bonds, but the remaining four bond distances are remarkably long for in-plane 4 + 2 coordination. Keywords: Hexachlorocuprate (II) 3-Chloroanilinium tetragonally compressed octahedron. (js)

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