(CuBr)3P4Se4: A low symmetric variant of the (CuI)3P4Se4 structure type

Sara Reiser, Tom Nilges, Arno Pfitzner

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Bright orange (CuBr)3P4Se4 is obtained from the reaction of CuBr, P, and Se in stoichiometric amounts (CuBr:P:Se = 3:4:4). The composition and the crystal structure of the compound were determined from single crystal X-ray diffraction data. Lattice constants are a = 33.627(2) Å, b = 6.402(1) Å, c = 19.059(1) Å, β = 90.19(3) °, V = 4103.2(3) Å3, and Z = 12. The compound crystallizes in a structure that is related to (CuI)3P4Se4. Cages of β-P4Se4 are stacked along the b-axis and are separated by columns of copper(I) bromide. However, the coordination of the β-P4Se4 cage molecules to the copper atoms in the CuBr columns in (CuBr)3P4Se4 is quite different from (CuI)3P4Se4. The monoclinic compound (space group: P21, no. 4) has an almost orthorhombic metric in combination with a threefold superstructure in [100]. Structural aspects of (CuBr)3P4Se4 are discussed with respect to the heavier homologue (CuI)3P4Se4.

Original languageEnglish
Pages (from-to)563-568
Number of pages6
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume629
Issue number3
DOIs
StatePublished - 2003
Externally publishedYes

Keywords

  • Copper
  • Phosphorus
  • Selenium

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