Reaction of CH/sub 2/C(CH/sub 3/)/sub 2/OH radicals with cobalt(II) tetrasulfophthalocyanine in aqueous solutions. A pulse radiolytic study
The reaction of cobalt(II) tetrasulfophthalocyanine, (Co/sup II/(tspc))/sup 4 -/, with CH/sub 2/C(CH/sub 3/)/sub 2/OH free radicals was studied. The results indicate that the first product formed is ((tspc)Co/sup III/CH/sub 2/C(CH/sub 3/)/sub 2/OH)/sup 4 -/. This product loses water via ..beta.. elimination to yield ((tspc)Co/sup III/CHchemically bondchemically bondC(CH/sub 3/)/sub 2/)/sup 4 -/. The decomposition of the latter compound yields (Co/sup I/(tspc))/sup 5 -/ + OCHCH(CH/sub 3/)/sub 2/ at pH greater than or equal to 9.5, (Co/sup III/(tspc))/sup 3 -/ + CH/sub 2/chemically bondchemically bondC(CH/sub 3/)/sub 2/ at pH approx.6, and mainly (Co/sup II/(tspc))/sup 4 -/ plus equal amounts of CH/sub 2/chemically bondchemically bondC(CH/sub 3/)/sub 2/ and OCHCH(CH/sub 3/)/sub 2/ at pH approx.3. The results suggest that a pK of the water molecule trans to the aliphatic residue affects the mechanism of hydrolysis. A further reaction is observed, the exact nature of which is not fully understood. For comparison purposes the oxidation of )Co/sup II/(tspc))/sup 4 -/ by Br/sub 2//sup -/ and its reduction by CO/sub 2//sup -/ were studied. 6 figures, 1 table
- Research Organization:
- Nuclear Research Center Negev, Beer-Sheva, Israel
- OSTI ID:
- 5030952
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 22:21; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ABSORPTION SPECTRA
ALCOHOLS
ALKALI METAL COMPOUNDS
ALKENES
AQUEOUS SOLUTIONS
BROMIDES
BROMINE COMPOUNDS
BUTANOLS
CARBOXYLIC ACID SALTS
CHALCOGENIDES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
COBALT COMPLEXES
COMPARATIVE EVALUATIONS
COMPLEXES
DATA
DECOMPOSITION
DISPERSIONS
DOSE RATES
DYES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
FORMATES
GAMMA RADIATION
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
HYDROXYL RADICALS
INFORMATION
IONIZING RADIATIONS
IRRADIATION
KINETICS
LEPTONS
MIXTURES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PHTHALOCYANINES
PHYSICAL PROPERTIES
PULSED IRRADIATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
REACTION KINETICS
SODIUM BROMIDES
SODIUM COMPOUNDS
SOLUTIONS
SOLVATED ELECTRONS
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
TIME DEPENDENCE
TRANSITION ELEMENT COMPLEXES
WATER
YIELDS