Substitution behaviour of an unusual seven-coordinate iron(III) complex in different solvents

Ivanovic-Burmazovic I, Hamza M, van Eldik R (2002)


Publication Type: Journal article, Original article

Publication year: 2002

Journal

Original Authors: Ivanovic-Burmazovic I., Hamza M., Van Eldik R.

Publisher: Elsevier

Book Volume: 5

Pages Range: 937-940

Journal Issue: 11

DOI: 10.1016/S1387-7003(02)00607-X

Abstract

In order to clarify the solution chemistry of 3d metal hepta-coordinate complexes, a detailed mechanistic study of the two-step substitution reaction between the "tweezer-like" iron(III) complex, [Fe(dapsox)(HO)] (Hdapsox=2,6-diacetylpyridine-bis(semioxamazide)), and SCN was performed in water and methanol as solvents. Based on the observed rate law and reported activation parameters (ΔH, ΔS and ΔV) for both reaction steps in aqueous solution, the operation of an I mechanism for the diaqua, an I mechanism for the aquathiocyanato, and an I or D mechanism for the aquahydroxo forms of the Fe(III) complex, is proposed. The operation of a limiting D mechanism is proposed for both reaction steps in methanol as solvent. © 2002 Elsevier Science B.V. All rights reserved.

Authors with CRIS profile

How to cite

APA:

Ivanovic-Burmazovic, I., Hamza, M., & van Eldik, R. (2002). Substitution behaviour of an unusual seven-coordinate iron(III) complex in different solvents. Inorganic Chemistry Communications, 5(11), 937-940. https://doi.org/10.1016/S1387-7003(02)00607-X

MLA:

Ivanovic-Burmazovic, Ivana, Mohamed Hamza, and Rudi van Eldik. "Substitution behaviour of an unusual seven-coordinate iron(III) complex in different solvents." Inorganic Chemistry Communications 5.11 (2002): 937-940.

BibTeX: Download