Synthesis of iron(II) dioximates with phosphine derivatives and their investigation by Moessbauer and IR spectroscopy
Newly synthesized compounds with the general formula (Fe/sup II/(dioxH)/sub 2/L/sub 2/), where dioxH stands for the monodeprotonated anions of dimethylglyoxime (dmgH) diphenylglyoxime (dpgH), 1,2-cyclohexanedione dioxime (nioxH), and ..cap alpha..-furildioxime (furgH), and L stands for n-butyldiphenylphosphine (PBuPh/sub 2/) and di-n-butylphenylphosphine (PBu/sub 2/Ph), have been investigated by Moessbauer and IR spectroscopy. The Moessbauer spectra of all the compounds at 80 and 300/sup 0/K consist of doublets, whose parameters correspond to the low-spin state of iron(II). The replacement of an axial ligand of PPh/sub 3/ by PBuPh/sub 2/ or PBu/sub 2/Ph results in a decreasing the magnitude of the quadrupole splitting by approx. 30%. It has been found that PBuPh/sub 2/ and PBu/sub 2/Ph have stronger sigma-donor and ..pi..-acceptor properties in comparison to PPH/sub 3/. The data from the IR and Moessbauer spectra confirm the existence of cis influence of the ligands in the complexes investigated.
- OSTI ID:
- 7007554
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 13:5; ISSN SJCCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102* -- Chemical & Spectral Procedures
400201 -- Chemical & Physicochemical Properties
AMINES
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
COBALT 57
COBALT ISOTOPES
COMPLEXES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELECTRON DENSITY
ENERGY LEVELS
EXCITED STATES
GAMMA SPECTRA
HYDROXY COMPOUNDS
HYPERFINE STRUCTURE
INFRARED SPECTRA
INTERMEDIATE MASS NUCLEI
IRON COMPLEXES
ISOTOPES
MOESSBAUER EFFECT
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIMES
PARTICLE PROPERTIES
PHOSPHINES
PHOSPHORUS COMPOUNDS
QUADRUPOLE MOMENTS
RADIOISOTOPES
SPECTRA
SPECTRAL SHIFT
SPIN
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
VIBRATIONAL STATES