Crystal Structure of Double Metal Oxide, Cu₃TiO₄

Abstract

The crystal structure of double metal oxide, Cu3TiOg, which containscupric and cuprous ions, has been studied by means of the single crystal X-ray diffraction analysis. Cu3TiO4 is obtained by heating the powder mixture with mixing ratio of Cu20:CuO:TiOa=1:1:1in aplatinum crucible at 1050Cin air. Since CusTiois dec mposed toCuO and TiO2 in the temperature range 600-900C, the reaction product needs tobe cooled rapidly.
The crystal is hexagonal with space group P63/mmc There is one formula unit in the unit cell of dimensiQns:ao=3.04A, cC=11.46A.h this structure, cupric and titanic ions are distributed randomly on the equivalent pQsitions which surrounded octahedrally by six oxygen-neig ibours. Eachcuprous ion has twooxygen neighbours disposed in a straight li:ne. The proposed rational formu1 of this compound is Cu2 (Cu2 Tio)