Crystal structure of potassium dysprosium octacyanotungstate(IV) heptahydrate |
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| Authors: | O A Sereda G Stökli-Evans I V Typilo D I Semenyshyn R E Gladyshevskii |
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| Institution: | (1) National University “Lviv Polytechnics,”, Lviv, Ukraine;(2) Institute of Microtechnology, University of Neuchatel, Neuchatel, Switzerland;(3) Ivan Franko National University, ul. Kyryla i Mefodiya 6, Lviv, 290005, Ukraine |
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| Abstract: | The crystal structure of KDyW(CN)8 · 7H2O was determined by X-ray diffraction. The crystals are triclinic, space group PI, a = 7.6284(7) Å, b = 9.2435(9) Å, c = 14.4778(14) Å, α = 80.673(11)°, β = 87.561(11)°, γ = 77.603(11)°, V = 983.86(16) Å3, Z = 2, ρcalcd = 2.429 g/cm3, R = 0.0249, w R = 0.0502 for 3601 independent reflections. The coordination polyhedron of tungsten is a highly deformed tetragonal antiprism W(CN)8], that of dysprosium is a tetragonal antiprism DyN4(H2O)4]. Some cyano groups are bridging being coordinated to tungsten and dysprosium by C and N atoms, respectively, and form a 3D structure via potassium atoms. The coordination polymer can be described as {K(H2O)]Dy(H2O)4]W(CN)8]}n· 2nH2O. |
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