Abstract
CdGa2O4, CuGa2O4 and four ternary spinels CdxCu1–xGa2O4 have been prepared by solid-state reaction of mixtures of CdO, CuO and Ga2O3 at 1223 K. X-ray powder diffractometry has been used to determine the unit-cell parameter, a0, the oxygen parameter, u, and the respective distributions of Cd2+, Cu2+ and Ga3+ in tetrahedral and octahedral coordination, by applying a computational method to compare observed and calculated diffraction intensities. The capability of the method has been tested for CuGa2O4, where the Cu2+(3d9) and Ga3+(3d10) ions have similar scattering powers, by comparing the results with data from neutron diffraction.
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Schedule a callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
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