Synthesis, Structure, and Superconductivity in the New-Structure-Type Compound: SrPt6P2

A metal-rich ternary phosphide, SrPt6P2, with a unique structure type was synthesized at high temperatures. Its crystal structure was determined by single-crystal X-ray diffraction [cubic space group Pa3̅; Z = 4; a = 8.474(2) Å, and V = 608.51(2) Å3]. The structure features a unique three-dimensiona...

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Bibliographic Details
Published in:Inorganic chemistry 2015-02, Vol.54 (3), p.1049-1054
Main Authors: Lv, Bing, Jawdat, BenMaan I, Wu, Zheng, Sorolla, Maurice, Gooch, Melissa, Zhao, Kui, Deng, Liangzi, Xue, Yu-Yi, Lorenz, Bernd, Guloy, Arnold M, Chu, Ching-Wu
Format: Article
Language:English
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Summary:A metal-rich ternary phosphide, SrPt6P2, with a unique structure type was synthesized at high temperatures. Its crystal structure was determined by single-crystal X-ray diffraction [cubic space group Pa3̅; Z = 4; a = 8.474(2) Å, and V = 608.51(2) Å3]. The structure features a unique three-dimensional anionic (Pt6P2)2– network of vertex-shared Pt6P trigonal prisms. The Sr atoms occupy a 12-coordinate (Pt) cage site and form a cubic close-packed (face-centered-cubic) arrangement, and the P atoms formally occupy tetrahedral interstices. The metallic compound becomes superconducting at 0.6 K, as evidenced by magnetic and resistivity measurements.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic502377v