Rate constants for the formation and dissociation of FeII(L)NO (L = aminocarboxylato) have been determined using stopped-flow, temperature jump, flash photolysis, and pulse radiolysis techniques. For a series of ligands the formation rate constants vary between 1.6 × 106 and 2.4 × 108 M-1 s-1, whereas the dissociation rate constants vary between 0.11 and 3.2 × 103 s-1 at 25°C. These rate constants result in stability constants (KNO = k1/kd) ranging from 5.0 × 102 to 1.1 × 107 M-1, which are in good agreement with values of KNO determined by a combined spectrophotometric and potentiometric technique. The results are discussed with reference to available literature data, and interpreted in terms of a generalized reaction mechanism.
|Number of pages||9|
|Journal||European Journal of Inorganic Chemistry|
|State||Published - 1 Jan 2001|
- Nitrogen oxides