Phenol-amide chelate of iron(III): Its redox activity with L-ascorbic acid

Authors
Rath, H Pradhan, GC Dash, AC
Citation
H. Rath et al., Phenol-amide chelate of iron(III): Its redox activity with L-ascorbic acid, I J CHEM A, 40(5), 2001, pp. 437-441
Citations number
21
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
ISSN journal
03764710 → ACNP
Volume
40
Issue
5
Year of publication
2001
Pages
437 - 441
Database
ISI
SICI code
0376-4710(200105)40:5<437:PCOIIR>2.0.ZU;2-A
Abstract
The protonated and unprotonated N,N ' -ethylene-bis-salicylamidatoiron(III) ions, Fe (SALMH)(2+) and Fe(SALM)(+), undergo fast complexation with L-asc orbic acid to form ternary complexes, [Fe(SALM)(HASc)]. and [Fe(SALM)(ASc)] (-) in which the ascorbate ion is chelated to Fe-III centre. These ternary complexes further undergo intramolecular electron transfer via innersphere mechanism in the stopped flow time scale producing Fe-II and dehydroascorbi c acid: the order of reactivity is k(Fe(SALMH))> k(Fe(SALM))(-).