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Title: X-ray diffraction study of R[UO(CHO)] ·HO ( R = K or Rb).
Authors: Serezhkina, L.; Grigor'ev, M.; Kuz'menko, I.; Serezhkin, V.
Abstract: Compounds K[UO(CHO)] · HO ( I) and Rb[UO(CHO)] · HO ( II) are synthesized and their crystal structures are determined by X-ray diffraction. The compounds crystallize in the monoclinic crystal system; for I, a = 7.1700(2) Å, b =12.3061(3) Å, c = 14.3080(4) Å, β = 95.831(2)°, space group P2/ n, Z = 4, and R = 0.0275; for II, a = 7.1197(2) Å, b = 12.6433(4) Å, c = 14.6729(6) Å, β = 96.353(2)°, space group P2/ n, Z = 4, and R = 0.0328. It is found that I and II are isostructural. The main structural units of the crystals are the [UO(CHO)] chains, which belong to the AT B ( A = UO, T, and B = CHO) crystal chemical group of uranyl complexes. The chains and alkali metal ions R ( R = K or Rb) are connected by electrostatic interactions and hydrogen bonds. Some specific structural features of [UO(CHO4)] complex groups are discussed.
Subjects: X-ray diffraction; CRYSTAL structure; ELECTROSTATICS; HYDROGEN bonding; URANYL compounds; PHYSICAL & theoretical chemistry
Publication: Crystallography Reports, 2012, Vol 57, Issue 2, p258
ISSN: 1063-7745
Publication type: Academic Journal
DOI: 10.1134/S1063774512020198

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X-ray diffraction study of R[UO(CHO)] ·HO ( R = K or Rb).