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Self‐ and cross‐termination rate constants for the isopropylol radical and its anion in aqueous solution
Author(s) -
Wu LungMin,
Fischer H.
Publication year - 1984
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550160906
Subject(s) - chemistry , steric effects , aqueous solution , solvation , ion , reaction rate constant , electron paramagnetic resonance , diffusion , kinetic energy , radical , radical ion , photochemistry , kinetics , organic chemistry , nuclear magnetic resonance , thermodynamics , physics , quantum mechanics
Rate constants for the self‐ and cross‐termination of the isopropylol radical [(CH 3 ) 2 ĊOH] and its anion [(CH 3 ) 2 ĊO − ] in aqueous solution are determined by kinetic electron spin resonance. Whereas the self‐termination of the neutral radical occurs close to the diffusion‐controlled limit, the cross‐ and self‐terminations involving the anion are slower and reflect effects of charge repulsion and steric constraints by solvation.