Oxidation, reduction, and copper-carbon bond formation in the reactions of copper(II) tetraglycine with pulse radiolytically generated free radicals
Description
The reactions of copper(II) tetraglycine (Cu/sup II/G4) with a variety of aliphatic free radicals and with .Br2- and .OH have been investigated by the pulse radiolytic technique. Three types of reaction are observed: (i) oxidation of Cu/sup II/G4 to Cu/sup III/G4 by .Br2- and .OH; (ii) rapid reduction to copper(I) by .CH2OH, .CO2-, and (CH3)2COH; (iii) formation of unstable copper(III)-carbon-bonded intermediates with lifetimes from several milliseconds to several seconds with .CH2C(CH3)2OH, .CH2CO2-, and .CH2C(OH)CH3 radicals. Rate constants are reported for formation and decomposition of all intermediates, and the relative instability of neutral Cu/sup III/(H/sub -2/G4) compared to Cu/sup III/(H/sub -3/G4)- is confirmed by direct observation
Additional details
Publishing Information
- Journal Title
- Inorg. Chem.
- Journal Volume
- 19
- Journal Issue
- 5
- Series
- Inorg. Chem.
- Journal Page Range
- 1373-1379
- ISSN
- 0020-1669
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11564591
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BROMINE; CHEMICAL REACTIONS; COPPER COMPOUNDS; ELECTRONS; EXPERIMENTAL DATA; GLYCINE; HYDROXYL RADICALS; ISOLATED VALUES; ORGANOMETALLIC COMPOUNDS; OXIDATION; RADICALS; RADIOLYSIS; REACTION KINETICS; REDUCTION
- Descriptors DEC
- AMINO ACIDS; CARBOXYLIC ACIDS; CHEMICAL RADIATION EFFECTS; DATA; DATA FORMS; DECOMPOSITION; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HALOGENS; INFORMATION; KINETICS; LEPTONS; NONMETALS; NUMERICAL DATA; ORGANIC ACIDS; ORGANIC COMPOUNDS; RADIATION EFFECTS; TRANSITION ELEMENT COMPOUNDS