Study of rare-earth fluoride oxalate tetrahydrates by IR spectroscopy
The IR spectra of ..cap alpha..-LnC/sub 2/O/sub 4/F x 4H/sub 2/O (Ln = Tb, Dy, Ho, Y) and ..beta..-LnC/sub 2/O/sub 4/F x 4H/sub 2/O (Ln = Tb-Lu, Y) and their deuteration products have been studied. The structural features of these fluoride oxalate tetrahydrates have been discussed on the basis of a comparison of data from IR and PMR spectroscopy and a complex thermal analysis. It has been shown that the ..cap alpha.. and ..beta.. modifications differ with respect to the coordination of the water molecules. In ..beta..-LnC/sub 2/O/sub 4/F x 4H/sub 2/O two H/sub 2/O molecules are coordinated by the metal, and the remaining water participates in the creation of a system of strong hydrogen bonds. In ..cap alpha..-LnC/sub 2/O/sub 4/F x 4H/sub 2/O the character of the coordination of the H/sub 2/O molecules is more complicated, at least three different types of water molecules can be identified, and more than two water molecules are probably coordinated by the metal. The type of coordination of the oxalato groups in the compounds has been discussed.
- Research Organization:
- Lomonosov Moscow State Univ., Moscow (Russian Federation)
- OSTI ID:
- 6158726
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Vol. 12:3; Other Information: Translated from Koordinatsionnaya Khimiya; 12: No.3, 328-335(Mar 1986)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DYSPROSIUM COMPLEXES
INFRARED SPECTRA
HOLMIUM COMPLEXES
OXALATES
TERBIUM COMPLEXES
YTTRIUM COMPLEXES
ABSORPTION SPECTRA
CATALYTIC EFFECTS
CHEMICAL BONDS
COORDINATION NUMBER
DEUTERATION
DYSPROSIUM FLUORIDES
ELECTRON SPIN RESONANCE
HEAVY WATER
HOLMIUM FLUORIDES
HYDRATES
LATTICE VIBRATIONS
LINE WIDTHS
LUTETIUM COMPLEXES
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TERBIUM FLUORIDES
YTTRIUM FLUORIDES
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
COMPLEXES
DYSPROSIUM COMPOUNDS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HOLMIUM COMPOUNDS
HYDROGEN COMPOUNDS
MAGNETIC RESONANCE
OXYGEN COMPOUNDS
RARE EARTH COMPLEXES
RARE EARTH COMPOUNDS
RESONANCE
SPECTRA
TERBIUM COMPOUNDS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
WATER
YTTRIUM COMPOUNDS
400201* - Chemical & Physicochemical Properties