New cubic perovskite Na(Cu2.5Ti0.5)Ti4O12 with square planar coordination of Ti4+
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Date
2006-02-08
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American Chemical Society
Abstract
A new perovskite, Na[Cu2.5Ti0.5]Ti4O12, has been synthesized using a conventional solid-state technique. Neutron and synchrotron X-ray powder diffraction studies in combination with density measurements and bond-valence calculations have revealed that the material crystallizes in the cubic Im3̄ space group (a = 7.38472(2) Å, Z = 2) with the square-plane site accommodating 16.7% of Ti4+. This is the highest level of non-Jahn−Teller cation substitution for Cu2+ reported to date for CaCu3Ti4O12-type perovskites prepared at ambient pressure. © 2006 American Chemical Society
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Keywords
Neutron diffraction, Perovskites, Oxides, Copper, Transistion elements, X-ray diffraction
Citation
Avdeev, M., & Nalbandyan, V. B. (2006). New cubic perovskite Na(Cu2.5Ti0.5)Ti4O12 with square planar coordination of Ti4+. Inorganic Chemistry, 45(5), 2217–2220. doi:10.1021/ic051413+