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Y[PS~4~]: An Unusual ABX~4~ Compound with a PtS‐Related Crystal Structure by Theresa Komm; Thomas Schleid is a Chemistry article available to read on EtoBox.

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## Abstract Pale yellow single crystals of Y[PS~4~] (tetragonal, I4~1~/acd; a = 1065.72(5), c = 1899.23(9) pm, Z = 16) can easily be obtained by the reaction of the elements without using a flux to avoid the entrapment of alkali metals. The structure consists of isolated [PS~4~]^3‐^ tetrahedra (d(P‐S) = 203 pm, 4×) each surrounded by four Y^3+^ cations resulting in a S~4~N~4~‐analogous arrangement of the metal cations and sulfur atoms about the phosphorus in the center of this polyhedron. Both crystallographically different Y^3+^ cations are eightfold coordinated by sulfur in the shape of trigonal dodecahedra (d(Y‐S) = 280 ‐ 300 pm, CN = 8) which in turn belong to four exclusively edge‐attached [PS~4~]^3‐^ tetrahedra. These build up a distorted cubic closest packing where the Y^3+^ cations are situated in one half of the tetrahedral holes the same way as S^2‐^ in the Pt^2+^ arrangement of the PtS‐type structure.

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Author

Theresa Komm; Thomas Schleid

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0372-7874)

Published

2004

Language

DE

Field

Chemistry (Physical Sciences)