Acta Cryst. (2007). E63, i27-i29  [ doi:10.1107/S1600536806056364 ]

A new pseudo-two-dimensional niobium chloride selenide, Nb₃Se₁₀Cl₃

J.-E. Kwak, S.-I. Hahn and H. Yun

Abstract: Triniobium decaselenide trichloride, Nb₃Se₁₀Cl₃, contains waved one-dimensional chains in which the Nb atoms are arranged in a sequence of two consecutive short bonds and one long distance. Two Nb atoms are each coordinated by three Se₂^2-, Cl^- and ²-Cl^-, whereas the third Nb atom is surrounded by four Se₂^2- to form distorted rectangular antiprisms of Se. Weak interchain interactions between Se and terminal Cl atoms connect the chains along the [101] direction to form a pseudo-two-dimensional layer. Nb₃Se₁₀Cl₃ is an insulator, in accordance with the charge-balanced formulation [Nb⁵⁺][Nb⁴⁺]₂[Se₂^2-]₅[Cl^-]₃.

Online 10 January 2007

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