Acta Cryst. (2005). E61, m2661-m2663  [ doi:10.1107/S1600536805037669 ]

Caesium dimethyldiselenidoarsenate(V)

T. Van Almsick and W. S. Sheldrick

Abstract: The title compound, Cs[As(CH₃)₂Se₂], contains discrete tetrahedral dimethyldiselenidoarsenate(V) anions and Cs cations, with As and Cs located on a crystallographic twofold rotation axis. A distorted octahedral coordination is observed for the caesium counter-cation, with CsSe distances in the range 3.706 (2)-3.762 (2) Å.

Online 23 November 2005

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