TY - JOUR
T1 - The reaction of ONOO- with carbonyls
T2 - Estimation of the haft-lives ONOOC(O)O- and O2NOOC(O)O-
AU - Goldstein, Sara
AU - Lind, Johan
AU - Merényi, Gabor
PY - 2002
Y1 - 2002
N2 - The equilibrium constant for the formation of an adduct between a carbonyl and a hydroperoxide ion varies linearly with the acid dissociation constant of the hydroperoxide. Based on this relationship, the half-life of the adduct formed between ONOO- and CO2, ONOOC(O)O-, is estimated to be shorter than 100 ns. Consequently, this adduct should not play any role whatsoever in chemical or biological systems. O2NOO- and CO2 are believed to be involved in a fast equilibrium reaction forming an adduct, O2NOOC(O)O-. This adduct does not appear to homolyse either along the O-O or the N-O bond. Furthermore, at realistic CO2 concentrations, the equilibrium should be shifted far to the O2NOO- + CO2 side. Therefore, the rate of self-decomposition of O2NOO- into NO2- and O2 is unaffected by the presence of bicarbonate.
AB - The equilibrium constant for the formation of an adduct between a carbonyl and a hydroperoxide ion varies linearly with the acid dissociation constant of the hydroperoxide. Based on this relationship, the half-life of the adduct formed between ONOO- and CO2, ONOOC(O)O-, is estimated to be shorter than 100 ns. Consequently, this adduct should not play any role whatsoever in chemical or biological systems. O2NOO- and CO2 are believed to be involved in a fast equilibrium reaction forming an adduct, O2NOOC(O)O-. This adduct does not appear to homolyse either along the O-O or the N-O bond. Furthermore, at realistic CO2 concentrations, the equilibrium should be shifted far to the O2NOO- + CO2 side. Therefore, the rate of self-decomposition of O2NOO- into NO2- and O2 is unaffected by the presence of bicarbonate.
UR - http://www.scopus.com/inward/record.url?scp=0037035133&partnerID=8YFLogxK
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AN - SCOPUS:0037035133
SN - 1470-479X
SP - 808
EP - 810
JO - Journal of the Chemical Society. Dalton Transactions
JF - Journal of the Chemical Society. Dalton Transactions
IS - 5
ER -