Abstract
Samarium(III) tris-dipivaloylmethanate [Sm(dpm)3]2 (I) and sodium samarium(III) tetrakishexafluoroacetylacetonate [NaSm(hfa)4]n (II) are obtained. The crystal structures of I at 150(2) K (space group P21/n, a = 12.279(1) Å, b = 27.726(3) Å, с = 21.884(2) Å, β = 105.317(3)°, V = 7186.0(11) Å3, Z = 4) and II at 150(2) K (space group C2/c, a = 21.693(2) Å, b = 12.2068(7) Å, с = 14.402(1) Å, β = 124.731(3)°, V = 3134.2(4) Å3, Z = 4) are determined. The structure of the complex I is similar to that of the previously known dimeric [Ln(dpm)3]2 (Ln = La, Pr, Nd, Eu, Gd, Tb) complexes; and the structure of the complex II is similar to that of the known [NaLn(hfa)4]n (Ln = Y, Eu, Er) complexes. It is shown by thermogravimetry that the volatility of REE tris-dipivaloylmethanates increases from Lu to La, the volatility of REE sodium tetrakis-hexafluoroacetylacetonates increases from La to Lu.
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Original Russian Text © 2018 S. Urkasym kyzy, Huang Shen, S. A. Mosyagina, I. V. Korolkov, N. V. Pervukhina, V. V. Krisyuk, P. A. Stabnikov.
Translated from Zhurnal Strukturnoi Khimii, Vol. 59, No. 2, pp. 446–450, March–April, 2018.
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kyzy, S.U., Shen, H., Mosyagina, S.A. et al. Crystal Structure and Properties of Two Samarium Β-Diketonates. J Struct Chem 59, 433–438 (2018). https://doi.org/10.1134/S0022476618020269
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DOI: https://doi.org/10.1134/S0022476618020269