Kinetics of reduction of a series of pentaaquo(pyridine)chromium(III) ions by 1-hydroxy-1-methylethyl radicals: evidence for electron transfer to pyridine
Journal Article
·
· Inorg. Chem.; (United States)
The title reaction was investigated for a series of (H/sub 2/O)/sub 5/Cr(NC/sub 5/H/sub 4/X)/sup 3 +/ ions. The rate constants are correlated by the Hammett equation. These data, in comparison to other cases in the literature, provide support for a mechanism in which a pyridyl radical, coordinated to Cr(III), is first formed. Subsequent intramolecular electron transfer to produce Cr/sup 2 +/ and pyH/sup +/ occurs more rapidly. Additional members of the series of free pyridinium ions, C/sub 5/H/sub 4/XNH/sup +/, were also investigated. 32 references, 2 figures, 4 tables.
- Research Organization:
- Rudjer Boskovic Institute, Zagreb, Yugoslavia
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 5459531
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 25:15; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKYL RADICALS
AZINES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM COMPLEXES
COMPLEXES
DATA
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PYRIDINE
PYRIDINES
RADICALS
REACTION KINETICS
REDUCTION
TRANSITION ELEMENT COMPLEXES
WATER
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKYL RADICALS
AZINES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM COMPLEXES
COMPLEXES
DATA
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PYRIDINE
PYRIDINES
RADICALS
REACTION KINETICS
REDUCTION
TRANSITION ELEMENT COMPLEXES
WATER