Journal
INORGANIC CHEMISTRY
Volume 54, Issue 3, Pages 1049-1054Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic502377v
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Funding
- U.S. Air Force Office of Scientific Research [FA9550-09-1-0656]
- T. L. L. Temple Foundation
- John J. and Rebecca Moores Endowment
- State of Texas through the Texas Center for Superconductivity at the University of Houston
- University of Houston
- R. A. Welch Foundation [E-1297]
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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 Pa (3) over bar; Z = 4; a = 8.474(2) angstrom, and V = 608.51(2) angstrom(3)]. 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.
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