Crystal structure of lanthanum potassium octacyanomolybdate(IV) nonahydrate |
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| Authors: | I. V. Typilo O. A. Sereda H. Stoeckli-Evans R. E. Gladyshevskii D. I. Semenyshyn |
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| Affiliation: | (1) Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China; |
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| Abstract: | The crystal structure of KLaMo(CN)8 · 9H2O was determined from X-ray diffraction data. The crystals are monoclinic, space group P21/c, a = 8.7451(4), b = 25.2761(13), c = 10.6744(5) Å, β = 117.059(3)°, V = 2101.22(17) Å3, Z = 4, ρ(calcd) = 2.037 g/cm3, R = 0.0242, wR 2 = 0.0500 for 5656 independent reflections. The coordination polyhedra of the Mo, La, and K atoms are the tetragonal antiprism [Mo(CN)8], the monocapped tetragonal antiprism [La(NC)4(OH2)5], and the strongly distorted monocapped trigonal prism [K(NC)3(OH2)4], respectively. The La and K atoms are N-linked by seven bridging cyano groups to form double layers with two sandwiched uncoordinated water molecules and the sandwiched terminal CN group. The complex can be formulated as “[K(H2O)2][La(H2O)5][Mo(CN)8]” n · 2nH2O. |
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