Crystal Structure and Properties of Two Samarium Β-Diketonates

Autor:	Huang Shen, P. A. Stabnikov, S. A. Mosyagina, I. V. Korol’kov, S. Urkasym kyzy, V. V. Krisyuk, N. V. Pervukhina
Rok vydání:	2018
Předmět:	Sodium chemistry.chemical_element Crystal structure 010402 general chemistry 010403 inorganic & nuclear chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Thermogravimetry Samarium Crystallography chemistry Materials Chemistry Physical and Theoretical Chemistry
Zdroj:	Journal of Structural Chemistry. 59:433-438
ISSN:	1573-8779 0022-4766
DOI:	10.1134/s0022476618020269
Popis:	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) A, b = 27.726(3) A, с = 21.884(2) A, β = 105.317(3)°, V = 7186.0(11) A3, Z = 4) and II at 150(2) K (space group C2/c, a = 21.693(2) A, b = 12.2068(7) A, с = 14.402(1) A, β = 124.731(3)°, V = 3134.2(4) A3, 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.
Databáze:	OpenAIRE
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