K(2)SrNb(6)Cl(18), dipotassium strontium hexaniobium octadecachloride.
The structure of dipotassium strontium hexaniobium octadecachloride is based on [Nb(6)Cl(i)(12)Cl(a)(6)](4-) units (i and a denote 'inner' and 'outer' ligands, respectively), which have crystallographically imposed -3 symmetry, linked together by K(+) and Sr(2+) cations. The K(+) cation occupies a tetrahedral site in the face-centered cubic lattice of cluster units, and is bonded to 12 Cl ligands. The Sr atom is located in an octahedral site and is bonded to six outer Cl ligands.
Duraisamy
Thirumalai
T
Department of Chemistry, Wake Forest University, Winston-Salem, NC 27109, USA.
Lachgar
Abdessadek
A