Abstract
The equilibrium and kinetics of the reaction between nitric oxide and phthalocyaninatoiron(II), [Fe(pc)], in dimethyl sulphoxide (dmso) has been studied at 20 ± 0.5 °C. In the presence of a large excess of NO, [Fe(pc)] binds nitric oxide in a 1:1 mol ratio via pseudo-first-order kinetics. The observed rate constant has the general form kobs. = kf[NO], i.e. with and intercept close to zero and a slope kf = (2.2 ± 0.4) × 104 dm3 mol-1s-1. From the values of the equilibrium constant [K = (1.1 ± 0.1) × 106 dm3 mol-1] and second-order rate constant (kf) for the binding of NO, the dissociation rate constant (kr) has been estimated to be (2.0 ± 0.4) × 10-2s-1. The present results are discussed in the light of related previous investigations.
| Original language | English |
|---|---|
| Pages (from-to) | 369-371 |
| Number of pages | 3 |
| Journal | Journal of the Chemical Society, Dalton Transactions |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1987 |
Fingerprint
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Equilibrium and kinetic study of nitric oxide binding to phthalocyaninatoiron(II) in dimethyl sulphoxide. / Ascenzi, Paolo; Brunori, Maurizio; Pennesi, Giovanna; Ercolani, Claudio; Monacelli, Fabrizio.
In: Journal of the Chemical Society, Dalton Transactions, No. 2, 1987, p. 369-371.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Equilibrium and kinetic study of nitric oxide binding to phthalocyaninatoiron(II) in dimethyl sulphoxide
AU - Ascenzi, Paolo
AU - Brunori, Maurizio
AU - Pennesi, Giovanna
AU - Ercolani, Claudio
AU - Monacelli, Fabrizio
PY - 1987
Y1 - 1987
N2 - The equilibrium and kinetics of the reaction between nitric oxide and phthalocyaninatoiron(II), [Fe(pc)], in dimethyl sulphoxide (dmso) has been studied at 20 ± 0.5 °C. In the presence of a large excess of NO, [Fe(pc)] binds nitric oxide in a 1:1 mol ratio via pseudo-first-order kinetics. The observed rate constant has the general form kobs. = kf[NO], i.e. with and intercept close to zero and a slope kf = (2.2 ± 0.4) × 104 dm3 mol-1s-1. From the values of the equilibrium constant [K = (1.1 ± 0.1) × 106 dm3 mol-1] and second-order rate constant (kf) for the binding of NO, the dissociation rate constant (kr) has been estimated to be (2.0 ± 0.4) × 10-2s-1. The present results are discussed in the light of related previous investigations.
AB - The equilibrium and kinetics of the reaction between nitric oxide and phthalocyaninatoiron(II), [Fe(pc)], in dimethyl sulphoxide (dmso) has been studied at 20 ± 0.5 °C. In the presence of a large excess of NO, [Fe(pc)] binds nitric oxide in a 1:1 mol ratio via pseudo-first-order kinetics. The observed rate constant has the general form kobs. = kf[NO], i.e. with and intercept close to zero and a slope kf = (2.2 ± 0.4) × 104 dm3 mol-1s-1. From the values of the equilibrium constant [K = (1.1 ± 0.1) × 106 dm3 mol-1] and second-order rate constant (kf) for the binding of NO, the dissociation rate constant (kr) has been estimated to be (2.0 ± 0.4) × 10-2s-1. The present results are discussed in the light of related previous investigations.
UR - http://www.scopus.com/inward/record.url?scp=37049083795&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37049083795&partnerID=8YFLogxK
U2 - 10.1039/DT9870000369
DO - 10.1039/DT9870000369
M3 - Article
AN - SCOPUS:37049083795
SP - 369
EP - 371
JO - Journal of the Chemical Society. Dalton Transactions
JF - Journal of the Chemical Society. Dalton Transactions
SN - 1472-7773
IS - 2
ER -