Acta Crystallographica Section C

Crystal Structure Communications

Volume 59, Part 4 (April 2003)

inorganic compounds

 

Potassium yttrium hexaniobium octadecachloride, KYNb₆Cl₁₈

T. Duraisamy and A. Lachgar

Abstract: The structure of potassium yttrium hexaniobium octadecachloride is built of anionic [Nb₆Cl₁₂ⁱCl₆^a]^4- cluster units (where `i' and `a' denote inner and outer ligands, respectively), linked together by K⁺ and Y³⁺ cations. The K⁺ cations occupy half of the tetrahedral vacancies in the face-centered cubic lattice of cluster units, and are coordinated by 12 chloride ligands. The Y atom is located in an octahedral site and is bonded to six outer chloride ligands.

Formula: KYNb₆Cl₁₈

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