Abstract
{[Sc2(C11H20N4O2)3(H2O)6]6+ · 6(NO −3 )} n (I), a coordination metallopolymer, has been synthesized for the first time and analyzed by X-ray diffraction. Crystals are tetragonal, space group P \(\bar 4\)21 c, a = 21.9797(6) Å, c = 12.7499(6)Å, V = 6159.6(4) Å3, ρcalcd = 1.392 g/cm3, Z = 4. The scandium atom is coordinated to the three oxygen atoms of spirocarbone molecules, which are related to the basal molecules by the symmetry codes 3/2 − y, 3/2 − x, 1/2 + z and 3/2 − y, 3/2 − x, − 1/2 + z, and also to three water molecules. The coordination number of scandium is 6. The coordination polyhedron of scandium is a slightly distorted octahedron with OScO angles within 84.70(15)°–95.86(14)° and 172.77(16)°–173.84(15)°. Nitrate anions are in the outer coordination sphere of the metal. The purity of compound I is verified via the Rietveld refinement of its X-ray powder diffraction pattern; the unit cell parameters at room temperature are a = 22.0589(6) Å, c = 12.7806(6) Å, V = 6219.0(6) Å3. Lines unrelated to the major phas are not observed in the X-ray diffraction pattern. The content of the major phase is 100 ± 1%.
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Original Russian Text © E.E. Netreba, 2014, published in Zhurnal Neorganicheskoi Khimii, 2014, Vol. 59, No. 4, pp. 470–476.
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Netreba, E.E. Synthesis and molecular and crystal structure of the coordination metallopolymer of scandium(III) nitrate with 4,4,10,10-tetramethyl-1,3,7,9,-tetraazospiro[5.5]undecane-2,8-dione. Russ. J. Inorg. Chem. 59, 315–321 (2014). https://doi.org/10.1134/S0036023614010112
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DOI: https://doi.org/10.1134/S0036023614010112