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Synthesis and structural characterization of the monodentate 12-crown-4 and hexaethylene glycol complexes of uranium(VI): [UO[sub 2]Cl[sub 2](OH[sub 2])[sub 2](12-crown-4)][center dot]12-crown-4 and UO[sub 2]Cl[sub 2](OH[sub 2])[sub 2](hexaethylene glycol)

Journal Article · · Journal of Coordination Chemistry; (United States)
; ; ;  [1]
  1. Northern Illinois Univ., DeKalb (United States)
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The reaction of anhydrous UO[sub 2]Cl[sub 2] with 12-crown-4 or hexaethylene glycol (EO6) in THF with low water content resulted in the crystallization of [UO[sub 2]Cl[sub 2](OH[sub 2])[sub 2](12-crown-4)][center dot]12-crown-4 and UO[sub 2]Cl[sub 2](OH[sub 2])[sub 2](EO6). The crystal structures of both complexes were determined. Each complex consists of a uranyl ion coordinated to two chloride anions, two water molecules, and one oxygen of the polyether. Most of the uncoordinated ether oxygen atoms participate in hydrogen bonding. The hydrogen bonding in the 12-crown-4 complex produces a dimer, while the hydrogen bonding in the EO6 complex is polymeric. The etheric U-O separation of 2.546(4) [angstrom] in the 12-crown-4 complex is the longest U-O contact in either complex, while the alcoholic U-O distance in the EO6 complex is a much shorter 2.433(5) [angstrom].

OSTI ID:
7121950
Journal Information:
Journal of Coordination Chemistry; (United States), Journal Name: Journal of Coordination Chemistry; (United States) Vol. 26:4; ISSN JCCMBQ; ISSN 0095-8972
Country of Publication:
United States
Language:
English

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Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPLEXES
ACTINIDE COMPOUNDS
ALCOHOLS
BOND ANGLE
BOND LENGTHS
CHEMICAL PREPARATION
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
COORDINATION VALENCES
CROWN ETHERS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIMENSIONS
ETHERS
GLYCOLS
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
LENGTH
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENE GLYCOLS
POLYMERS
SYNTHESIS
URANIUM COMPLEXES
URANIUM COMPOUNDS
URANYL CHLORIDES
URANYL COMPLEXES
URANYL COMPOUNDS
VALENCE