TY - JOUR
T1 - The synthesis and crystal structure of U7O2Se 12
AU - Ward, Matthew D.
AU - Ibers, James A.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/7
Y1 - 2014/7
N2 - The new compound U7O2Se12 was synthesized at 1173 K as a result of both unintentional and intentional oxygen contamination. The composition balances with formal charges of +4, -2, and -2 for U, O, and Se, respectively. U7O2Se12 crystallizes with one formula unit in space group C1 3h-P6̄ of the hexagonal system in a cell of dimensions a = 11.3222(4) Å, c = 4.1362(1) Å. The structure of U7O 2Se12 closely resembles that of the An7Te 12 (An = Th, U) compounds, but contains cavities, in which oxygen atoms are coordinated to three uranium atoms in a trigonal planar arrangement. It is not known if other members of the An7Q12 family (An = Th, U; Q = S, Se, Te) are actually An7O2Q12 compounds.
AB - The new compound U7O2Se12 was synthesized at 1173 K as a result of both unintentional and intentional oxygen contamination. The composition balances with formal charges of +4, -2, and -2 for U, O, and Se, respectively. U7O2Se12 crystallizes with one formula unit in space group C1 3h-P6̄ of the hexagonal system in a cell of dimensions a = 11.3222(4) Å, c = 4.1362(1) Å. The structure of U7O 2Se12 closely resembles that of the An7Te 12 (An = Th, U) compounds, but contains cavities, in which oxygen atoms are coordinated to three uranium atoms in a trigonal planar arrangement. It is not known if other members of the An7Q12 family (An = Th, U; Q = S, Se, Te) are actually An7O2Q12 compounds.
KW - Crystal structure
KW - Oxyselenide
KW - Synthesis
KW - Uranium
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U2 - 10.1002/zaac.201400144
DO - 10.1002/zaac.201400144
M3 - Article
AN - SCOPUS:84904443871
SN - 0044-2313
VL - 640
SP - 1585
EP - 1588
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
IS - 8-9
ER -