Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Scandium(III) Benzoyltrifluoroacetonate: Structure and Thermal Properties. / Sartakova, A. V.; Makarenko, A. M.; Kurat’eva, N. V. и др.
в: Russian Journal of Inorganic Chemistry, Том 68, № 9, 09.2023, стр. 1192-1199.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Scandium(III) Benzoyltrifluoroacetonate: Structure and Thermal Properties
AU - Sartakova, A. V.
AU - Makarenko, A. M.
AU - Kurat’eva, N. V.
AU - Pishchur, D. P.
AU - Sysoev, S. V.
AU - Vikulova, E. S.
AU - Zherikova, K. V.
N1 - This work was supported by the Russian Science Foundation and the Government of the Novosibirsk Region (project No. 22-23-20182). Публикация для корректировки.
PY - 2023/9
Y1 - 2023/9
N2 - Scandium(III) benzoyltrifluoroacetonate [Sc(btfac)3] was synthesized, purified, and characterized by elemental analysis and 1H NMR spectroscopy. Its structure was determined by single-crystal X-ray diffraction at 150 K. The complex has a molecular structure and is an axial isomer. All ligands in it are bidentate-cyclic coordinated; scandium is in a distorted octahedral environment, d(Sc–O) = 2.0681(2)–2.094(2) Å. There are two types of stacking interactions. The thermal properties in the condensed phase were studied by thermal analysis and differential scanning calorimetry (DSC). The temperature, enthalpy, and entropy of melting of the complex were determined as 399.1 ± 0.5 K, (Formula Presented.) = 36.8 ± 1.3 kJ/mol, and (Formula Presented.) = 92.2 ± 3.3 J/(K mol), respectively. The temperature-dependent saturated vapor pressure of [Sc(btfac)3] was determined in the temperature range 413–443 K by the flow (transpiration) method. The thermodynamic characteristics of vaporization at an average temperature were calculated: (Formula Presented.) = 135 ± 4 kJ/mol, and (Formula Presented.) = 212 ± 9 J/(K mol). The structure and thermal properties of scandium benzoyltrifluoroacetonate were compared to those of similar scandium tris-β-diketonate complexes.
AB - Scandium(III) benzoyltrifluoroacetonate [Sc(btfac)3] was synthesized, purified, and characterized by elemental analysis and 1H NMR spectroscopy. Its structure was determined by single-crystal X-ray diffraction at 150 K. The complex has a molecular structure and is an axial isomer. All ligands in it are bidentate-cyclic coordinated; scandium is in a distorted octahedral environment, d(Sc–O) = 2.0681(2)–2.094(2) Å. There are two types of stacking interactions. The thermal properties in the condensed phase were studied by thermal analysis and differential scanning calorimetry (DSC). The temperature, enthalpy, and entropy of melting of the complex were determined as 399.1 ± 0.5 K, (Formula Presented.) = 36.8 ± 1.3 kJ/mol, and (Formula Presented.) = 92.2 ± 3.3 J/(K mol), respectively. The temperature-dependent saturated vapor pressure of [Sc(btfac)3] was determined in the temperature range 413–443 K by the flow (transpiration) method. The thermodynamic characteristics of vaporization at an average temperature were calculated: (Formula Presented.) = 135 ± 4 kJ/mol, and (Formula Presented.) = 212 ± 9 J/(K mol). The structure and thermal properties of scandium benzoyltrifluoroacetonate were compared to those of similar scandium tris-β-diketonate complexes.
KW - saturated vapor pressure
KW - scandium β-diketonate
KW - single-crystal X-ray diffraction analysis
KW - synthesis
KW - thermal analysis
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85173673976&origin=inward&txGid=21e1936044e43c245fb67a44bd2b06de
UR - https://www.mendeley.com/catalogue/e44ec7c1-c431-36bb-8123-81207a504247/
U2 - 10.1134/S003602362360140X
DO - 10.1134/S003602362360140X
M3 - Article
VL - 68
SP - 1192
EP - 1199
JO - Russian Journal of Inorganic Chemistry
JF - Russian Journal of Inorganic Chemistry
SN - 0036-0236
IS - 9
ER -
ID: 59179916