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620448 
Journal Article 
Mechanistic studies on oxidation of hydrogen peroxide by an oxo-bridged diiron complex in aqueous acidic mediaElectronic supplementary information (ESI) available: Comparison of observed and expected absorption at 60 seconds of reaction, and estimation 
Suranjana, D; Jhimli, B; Subrata, M 
2008 
Yes 
Dalton Transactions
ISSN: 1477-9226
EISSN: 1477-9234 
2008 
46 
6634-6640 
A novel Raman spectroscopic model for the dinuclear iron site in ribonucleotide reductase and met-hemerythrin, [Fe2(μ-O)(phen)4(H2O)2]4+, 1, (phen = 1,10-phenanthroline) quantitatively oxidizes hydrogen peroxide to dioxygen viaan inner-sphere electron transfer pathway. Although 1deprotonates to form [Fe2(μ-O)(phen)4(H2O)(OH)]3+(2) and [Fe2(μ-O)(phen)4(OH)2]2+(3) in aqueous media, neither 2nor 3is reactive in oxidising H2O2. In the presence of excess phen, no phen-releasing equilibria from 1, 2and 3exist. Kinetic evidence of the generation of a (μ-1,2 peroxo)diiron(III,III) intermediate, prior to electron transfer, were obtained. Significant rate retardation in D2O media suggests proton coupled electron transfer (PCET) in the rate determining step of the title redox reaction. [ABSTRACT FROM AUTHOR] Copyright of Dalton Transactions: An International Journal of Inorganic Chemistry is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts) 
HYDROGEN peroxide; OXIDATION; IRON compounds; SOLUTION (Chemistry); ABSORPTION (Chemistry); RAMAN spectroscopy; CHARGE exchange