Compounds Exhibiting Coördination Number Eight. The Potassium Tetraoxalatometallates of Zirconium(IV), Hafnium(IV), Thorium(IV), and Uranium(IV)

Journal Article · Thu Feb 01 04:00:00 EST 1962 · Inorganic Chemistry

DOI:https://doi.org/10.1021/ic50001a032· OSTI ID:4807490

Johnson, Frederic A.; Larsen, Edwin M.

Conditions for the preparation of the tetraoxalatometallates of zirconium (IV), hafnium (IV), thorium(IV), and uranium (IV), free of hydrolysis products, were studied. The zirconium and hafnium compounds are monoclinic with four molecules in the unit cell. The crystals belong to the space group P2/sub 1/ /a, which permits the existence of mirror images in the solid state. Attempts to resolve the possible racemic pairs of these anions were unsuccessful. Oxalate exchange studies with C/sup 14/ containing oxalic acid showed that complete exchange occurred withth a few minutes time of the experiment. It is shown that the anions lose oxalate by hydrolysis and/or aquation. The infrared spectra have frequencies for O-C-O vibrations about half way between those for the oxalate ion and a covalent oxalate molecule.

• Research Organization: Univ. of Wisconsin, Madison
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-011608
• OSTI ID: 4807490
• Journal Information: Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 1 Vol. 1; ISSN 0020-1669
• Publisher: American Chemical Society (ACS)
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ANIONS
BINDING ENERGY
CARBON
CONFIGURATION
CRYSTALS
FREQUENCY
HAFNIUM COMPLEXES
HYDROLYSIS
INFRARED RADIATION
ION EXCHANGE
ISOMERS
LABELLED COMPOUNDS
LATTICES
OSCILLATIONS
OXALATES
OXALIC ACID
POTASSIUM COMPOUNDS
PREPARATION
SPECTRA
THORIUM COMPLEXES
URANIUM COMPLEXES
ZIRCONIUM COMPLEXES