Gamma-resonance investigation of the kinetics of the reduction of (. cap alpha. -benzil dioximato-1)(. cap alpha. -benzil dioximato-2)di(pyridine)iron(III)
(..cap alpha..-Benzil dioximato-1)(..cap alpha..-benzil dioximato-2)di(pyridine)iron(III) in the form of the diacetone solvate (II) is spontaneously converted at room temperature into (..cap alpha..-benzil dioximato-1)(..cap alpha..-benzil dioximato-2)di(pyridine)iron(II) (III). The quantitative composition of a sample containing complexes II and III has been determined as a function of the temperature and the time by gamma-resonance spectroscopy, which made it possible to investigate the kinetics of this reaction. The changes obtained in the percentage of complex II in the sample as a function of time at a given temperature was treated with the use of the Kolmogorov-Erofeev equation for a topochemical reaction of the type A/sub s/ ..-->.. B/sub s/ + C/sub g/. The rate constants of the reaction at various temperatures and the activation energy *E have been determined. In the temperature range from 293 to 304/sup 0/K *E = 25.6 kcal/mole. The possibilities of gamma-resonance spectroscopy in the investigation of topochemical reactions associated with changes in the oxidation state of iron ions have been demonstrated.
- Research Organization:
- Institute of Chemistry, Moldavian, USSR
- OSTI ID:
- 6413318
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Vol. 11:9; Other Information: Translated from Koordinatsionnaya Khimiya; 11: No.9, 1229-1233(Sep 1985)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis of complex pyridine bases in the reaction of. cap alpha. ,omega-nitrileacetylenes with acetylene, catalyzed by cobalt complexes
Kinetics and mechanisms of 1,5-dihydroflavin reduction of carbonyl compounds and flavin oxidation of alcohols. III. Oxidation of benzoin by flavin and reduction of benzil by 1,5-dihydroflavin
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
IRON COMPLEXES
COORDINATION VALENCES
GAMMA SPECTRA
HYPERFINE STRUCTURE
REDUCTION
ACTIVATION ENERGY
CHEMICAL REACTION KINETICS
ELECTRON DENSITY
ELECTRONIC STRUCTURE
IODIDES
ISOMER SHIFT
KOLMOGOROV EQUATION
MOESSBAUER EFFECT
ORGANIC SOLVENTS
ORGANOMETALLIC COMPOUNDS
OXIMES
PYRIDINES
SPIN
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
AMINES
ANGULAR MOMENTUM
AZINES
CHEMICAL REACTIONS
COMPLEXES
DIFFERENTIAL EQUATIONS
ENERGY
EQUATIONS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
IODINE COMPOUNDS
KINETICS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTICLE PROPERTIES
REACTION KINETICS
SOLVENTS
SPECTRA
TRANSITION ELEMENT COMPLEXES
VALENCE
400201* - Chemical & Physicochemical Properties
640302 - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory