Tetraalkylammonium Bromochlorocuprates(II)

Abstract

(NMe₄)₂CuBr_nC1_4-n and (NEt₄)_nCuBrnCl_44-n (n = 1, 2, 3) have been prepared and characterized by X-ray powder diffraction and far-infrared spectroscopy. The tetramethylammonium compounds are isomorphous with each other and with the corresponding compounds where n = 0, 4. The tetraethylammonium compounds constitute another isomorphous series. All the compounds apparently contain discrete CuBr_nCI_4-n^2- anions, with flattened tetrahedral configurations.