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Synthesis and Crystal-Chemical Features of Two New Uranyl Chromates with the Structures Derivedfrom [(UO2)(T6+O4)(H2O)n]0 (T = Cr6+, S6+, Se6+, n = 0–2). / Назарчук, Е. В.; Сийдра, О. И.; Каюков, Р. А.
в: Radiochemistry, Том 58, № 6, 2016, стр. 571-577.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Synthesis and Crystal-Chemical Features of Two New Uranyl Chromates with the Structures Derivedfrom [(UO2)(T6+O4)(H2O)n]0 (T = Cr6+, S6+, Se6+, n = 0–2).
AU - Назарчук, Е. В.
AU - Сийдра, О. И.
AU - Каюков, Р. А.
PY - 2016
Y1 - 2016
N2 - Two new chromates of hexavalent uranium, [C3H10N][(UO2)(CrO4)(NO3)] (1) and [C2H8N]2[(UO2)2· (CrO4)2(Cr2O7)](H2O)2 (2), were prepared by a combination of hydrothermal synthesis and isothermal evaporation. Compounds 1 and 2 crystallize in the triclinic system, space group Р1¯; a = 7.245(3), b = 7.329(3), c = 11.359(4) Å; α = 85.549(6)°, β = 82.547(6)°, γ = 80.174(6)° for 1; a = 7.2063(4), b = 11.5107(7), c = 16.0980(11) Å; α = 70.736(4)°, β = 80.246(4)°, γ = 71.759(4)° for 2. The structures were solved by the direct methods and refined to R1 = 0.064 [for 1495 reflections with Fo > 4σ(Fo)] and 0.047 [for 4529 reflections with Fo > 4σ(Fo)] for 1 and 2, respectively. The crystal structure of 1 is based on [(UO2)(CrO4)(NO3)]– chains between which the isopropylamine molecules are arranged. In the structure of 2, the amine and H2O molecules are localized between the [(UO2)2(CrO4)2(Cr2O7)]2– layers. The uranyl chromate complexes described are derived from [(UO2)(TO4)(H2O)n]0 chains (T = Cr6+, S6+, Se6+, n = 0–2). A b
AB - Two new chromates of hexavalent uranium, [C3H10N][(UO2)(CrO4)(NO3)] (1) and [C2H8N]2[(UO2)2· (CrO4)2(Cr2O7)](H2O)2 (2), were prepared by a combination of hydrothermal synthesis and isothermal evaporation. Compounds 1 and 2 crystallize in the triclinic system, space group Р1¯; a = 7.245(3), b = 7.329(3), c = 11.359(4) Å; α = 85.549(6)°, β = 82.547(6)°, γ = 80.174(6)° for 1; a = 7.2063(4), b = 11.5107(7), c = 16.0980(11) Å; α = 70.736(4)°, β = 80.246(4)°, γ = 71.759(4)° for 2. The structures were solved by the direct methods and refined to R1 = 0.064 [for 1495 reflections with Fo > 4σ(Fo)] and 0.047 [for 4529 reflections with Fo > 4σ(Fo)] for 1 and 2, respectively. The crystal structure of 1 is based on [(UO2)(CrO4)(NO3)]– chains between which the isopropylamine molecules are arranged. In the structure of 2, the amine and H2O molecules are localized between the [(UO2)2(CrO4)2(Cr2O7)]2– layers. The uranyl chromate complexes described are derived from [(UO2)(TO4)(H2O)n]0 chains (T = Cr6+, S6+, Se6+, n = 0–2). A b
U2 - 10.1134/S1066362216060023
DO - 10.1134/S1066362216060023
M3 - Article
VL - 58
SP - 571
EP - 577
JO - Radiochemistry
JF - Radiochemistry
SN - 1066-3622
IS - 6
ER -
ID: 7607363