Journal article

Authors list: Ritz, FJ; Lerch, M; Becker, J; Schindler, S

Publication year: 2022

Pages: 894-907

Journal: Journal of Coordination Chemistry

Volume number: 75

Issue number: 7-8

ISSN: 0095-8972

eISSN: 1029-0389

DOI Link: https://doi.org/10.1080/00958972.2022.2095268

Publisher: Taylor and Francis Group

Abstract: 
Oxido iron(IV) complexes are key intermediates in oxygenation reactions in biological systems. They can form during oxidation experiments with various oxidants such as oxygen, hydrogen peroxide, organoiodine compounds, or ozone. However, kinetic studies for these reactions are rare because the intermediates are usually labile. Here the results of a detailed investigation on the oxidation of iron(II) complexes with macrocyclic (e.g. TMC = tetramethylcyclam = 1,4,8,11-tetramethyl-1,4,8,11-tetraaza-cyclotetradecane) ligands are reported that provide a better understanding of the mechanisms of these reactions. For formation of the quite stable oxido iron complex with an amide derivative of TMC, activation parameters with Delta H-double dagger = 28 +/- 4 kJ center dot mol(-1) and Delta S-double dagger = -144 +/- 15 J center dot mol(-1)center dot K-1 could be obtained that allowed postulation of an associative mechanism.

Harvard Citation style: Ritz, F., Lerch, M., Becker, J. and Schindler, S. (2022) Kinetic investigations of the formation of iron(IV) oxido complexes, Journal of Coordination Chemistry, 75(7-8), pp. 894-907. https://doi.org/10.1080/00958972.2022.2095268

APA Citation style: Ritz, F., Lerch, M., Becker, J., & Schindler, S. (2022). Kinetic investigations of the formation of iron(IV) oxido complexes. Journal of Coordination Chemistry. 75(7-8), 894-907. https://doi.org/10.1080/00958972.2022.2095268