Solvent-extraction complexes of the uranyl ion. 2. Crystal and molecular structures of catena-bis(. mu. -di-n-butyl phosphato-O,O')dioxouranium(VI) and bis(. mu. -di-n-butyl phosphato-O,O')bis((nitrato)(tri-n-butylphosphine oxide)dioxouranium(VI))

Journal Article · Sat Jan 01 04:00:00 EST 1983 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00150a006· OSTI ID:6102234

Burns, J H

Two complexes of the uranyl ion with organophosphus extractants have been analyzed by single-crystal x-ray diffraction methods. A polymeric complex, UO/sub 2/((C/sub 4/H/sub 9/)/sub 2/PO/sub 4/)/sub 2/, is formed with dibutylphosphoric acid; and with a mixture of this acid and tributylphosphine oxide a dimeric complex having the composition (UO/sub 2/((C/sub 4/H/sub 9/)/sub 2/PO/sub 4/)((C/sub 4/H/sub 9/)/sub 3/PO)NO/sub 3/)/sub 2/ is formed. The first of these is Trinclinic, P1, with a = 8.402 (6) A, b = 15.648 (9) A, c = 5.385 (3) A, ..cap alpha.. = 99.46 (4)/sup 0/, ..beta.. = 98.51 (4)/sup 0/, ..gamma.. = 70.44 (3)/sup 0/, and Z = 1; the second is also triclinic, P1, with a = 13.510 (6) A, b = 13.741 (6) A, c = 10.055 (4) A, ..cap alpha.. = 121.32 (2)/sup 0/, ..beta.. = 100.28 (3)/sup 0/, ..gamma.. = 80.00 (4)/sup 0/, and Z = 1 (dimer). In each structure, pairs of linear uranyl ions are bridged by two dibutyl phosphate ions. In one case the bridging is repeated indefinitely to form a polymer, and each uranyl ion has four O atoms about its equator. The other structure is dimeric, and the chain is terminated by NO/sub 3//sup -/ ions and phosphine oxide molecules at the equators of the uranyl ions. 26 references, 4 figures, 5 tables.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6102234
• Journal Information: Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 22:8; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400105 -- Separation Procedures
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPLEXES
ACTINIDE COMPOUNDS
ACTINIDES
ANISOTROPY
BOND ANGLE
COHERENT SCATTERING
COMPLEXES
CORRELATIONS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALLOGRAPHY
CRYSTALS
DATA
DIFFRACTION
DIMERS
DISPERSIONS
DISTANCE
ELEMENTS
ESTERS
EXPERIMENTAL DATA
EXTRACTION
INFORMATION
INTERATOMIC DISTANCES
LATTICE PARAMETERS
LEAST SQUARE FIT
LIGANDS
MATHEMATICAL MODELS
MAXIMUM-LIKELIHOOD FIT
METALS
MIXTURES
MOLECULAR STRUCTURE
MONOCRYSTALS
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
NUMERICAL SOLUTION
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SOLVENTS
OXYGEN COMPOUNDS
PHOSPHORIC ACID ESTERS
SCATTERING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
STRUCTURAL CHEMICAL ANALYSIS
TBPO
TRICLINIC LATTICES
URANIUM
URANIUM COMPLEXES
URANIUM COMPOUNDS
URANYL COMPLEXES
URANYL COMPOUNDS
URANYL NITRATES
X-RAY DIFFRACTION