Synthesis and crystal structure of CuZrTiO5-A new crystal structure type

Ulrike Troitzsch, Andrew G. Christy*, Anthony C. Willis, David J. Ellis

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A new compound, CuZrTiO5, was synthesized as strongly pleochroic green crystals from the oxides between 995 and 1010 °C, 1 atm. Its crystal structure was determined by single crystal XRD, resulting in R (F2>2σ(F2))=0.032 and wR (all data)=0.079). CuZrTiO5 is orthorhombic, space group P212121, a=3.5871(3) Å, b=6.6968(4) Å, c=14.6679(9) Å, V=352.35(4) Å3, Z=4. The structure is topologically similar to In2TiO5 but differs in space group and cation coordination. CuZrTiO5 has relatively regular TiO6 polyhedra, but coordination is 7+1 for Zr, and 4+2 for Cu due to the Jahn-Teller effect. Ordering of the long Cu-O bonds causes reduction in symmetry relative to In2TiO5. Layers of Cu alternate with Ti+Zr on (001), giving rise to a distinct cleavage. Bond valence sums on Ti and Zr are far from ideal, which appears due to the limited ability of this structural topology to avoid close next-nearest neighbour distances.

    Original languageEnglish
    Pages (from-to)668-675
    Number of pages8
    JournalJournal of Solid State Chemistry
    Volume183
    Issue number3
    DOIs
    Publication statusPublished - Mar 2010

    Fingerprint

    Dive into the research topics of 'Synthesis and crystal structure of CuZrTiO5-A new crystal structure type'. Together they form a unique fingerprint.

    Cite this