Crystal structure of the novel compound Ce₃Pt₄Al₆

Chem. Met. Alloys 1 (2008)  62-66

https://doi.org/10.30970/cma1.0027

A.I. TURSINA, A.V. GRIBANOV, N.G. BUKHAN’KO, P. ROGL, Y.D. SEROPEGIN

The structure of the novel ternary aluminide Ce₃Pt₄Al₆ was refined from X-ray single crystal data in the orthorhombic space group Pnma with a = 13.6589(2), b = 4.3331(1), c = 17.4740(3) Å, Z = 4; R = 0.049. The structure can be described as built up from platinum centered trigonal prisms formed by cerium and aluminum atoms. These prisms form infinite columns in the [010] direction by sharing triangular faces. The columns are condensed into groups by edge sharing of the constituent trigonal prisms.

The arrangement of Pt-centered trigonal prisms in the structure of Ce₃Pt₄Al₆.

Keywords

Cerium platinum aluminide / X-ray crystal structure determination / Ce₃Pt₄Al₆