Far-infrared absorption spectra of cobalt(III), rhodium(III), and iridium(III). beta. -diketonates
The IR absorption spectra of the complexes of Co(II), Rh(III), and Ir(III) with acetylacetone, trifluoroacetylacetone, hexafluoroactylacetone, dipivaloylmethane, and pivaloyltrifluoroacetylacetone in the region from 30 to 700 cm/sup -1/ have been examined for the first time. The frequencies of the intramolecular vibrations associated with in-plane and out-of-plane deformations of the chelate rings and deformations of the radicals in the ligands have been assigned. The frequencies of the predominantly stretching nu(MO) vibrations of the metal-oxygen bonds have been identified. Their variation has been compared with NMR data on the redistribution of the electron density in the chelate rings.
- Research Organization:
- Institute of Inorganic Chemistry, Siberia, USSR
- OSTI ID:
- 6158944
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 12:5; ISSN SJCCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ACETYLACETONE
ALKANES
BINDING ENERGY
BOND ANGLE
CARBOXYLIC ACIDS
CATALYTIC EFFECTS
CHELATING AGENTS
CHEMICAL BONDS
CHEMICAL SHIFT
COBALT COMPLEXES
COMPLEXES
DISTANCE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
FAR INFRARED RADIATION
FERMIONS
HYDROCARBONS
HYDROGEN 1
HYDROGEN ISOTOPES
HYPERFINE STRUCTURE
INFRARED RADIATION
INFRARED SPECTRA
INTERATOMIC DISTANCES
IRIDIUM COMPLEXES
ISOTOPES
KETONES
LATTICE VIBRATIONS
LEPTONS
LIGANDS
LIGHT NUCLEI
METHANE
MOLECULAR STRUCTURE
MONOCARBOXYLIC ACIDS
NMR SPECTRA
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PIVALIC ACID
RADIATIONS
REAGENTS
RHODIUM COMPLEXES
SPECTRA
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPLEXES
VALENCE