EPR Detection of Fe(V)=O Active Species in Nonheme Iron-Catalyzed Oxidations | Sciact - CRIS-system of Boreskov Institute of Catalysis

EPR Detection of Fe(V)=O Active Species in Nonheme Iron-Catalyzed Oxidations Full article

Journal

Catalysis Communications
ISSN: 1566-7367 , E-ISSN: 1873-3905

Output data

Year: 2012, Volume: 29, Pages: 105-108 Pages count : 4 DOI: 10.1016/j.catcom.2012.09.029

Tags

Bioinorganic chemistry, EPR, Hydrogen peroxide, Iron, Oxidation, Reaction mechanisms

Authors

Lyakin Oleg Y. ^1,2 , Prat Irene ³ , Bryliakov Konstantin P. ^1,2 , Costas Miguel ³ , Talsi Evgenii P. ^1,2

Affiliations

1	Siberian Branch of the Russian Academy of Sciences, Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
2	Novosibirsk State University, Ul. Pirogova 2, Novosibirsk 630090, Russian Federation
3	Institut de Química Computacional i Departament de Química, Universitat de Girona, Campus de Montilivi, Girona 17071, Spain

Funding (6)

1	Catalan Institution for Research and Advanced Studies	SGR-239910
2	Russian Foundation for Basic Research	12-03-00782
3	Russian Foundation for Basic Research	12-03-31709
4	Ministry of Education and Vocational Training	CSD2010-00065
5	Ministry of Education and Vocational Training	CTQ-2009-08864
6	Ministry of Education and Vocational Training	ERC-2009-StG-239910

Very recently, in situ cryospray-assisted variable temperature mass spectrometry (VT-MS) has been used to obtain the first convincing evidence for a HO–FeV=O intermediate in the catalyst system [(Me2PyTACN) FeII(OTf)2] (4)/H2O2 (Me2PyTACN=1-(2′-pyridylmethyl)-4,7-dimethyl-1,4,7-triazacyclononane, OTf=OSO2CF3). The herein presented EPR spectroscopic study of the same system witnesses the formation of S=1/2 reactive iron species. Its EPR parameters, in combination with its reactivity pattern toward cyclohexene and with independently obtained VT-MS data, allow for its reasonable assignment to the reactive [(Me2PyTACN)FeV=O(OH)]2+ (4c) species

Lyakin O.Y. , Prat I. , Bryliakov K.P. , Costas M. , Talsi E.P.
EPR Detection of Fe(V)=O Active Species in Nonheme Iron-Catalyzed Oxidations
Catalysis Communications. 2012. V.29. P.105-108. DOI: 10.1016/j.catcom.2012.09.029 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jul 20, 2012
Accepted:	Sep 25, 2012
Published online:	Oct 2, 2012
Published print:	Dec 1, 2012

Web of science:	WOS:000313024300022
Scopus:	2-s2.0-84867623300
Elibrary:	20496595
Chemical Abstracts:	2012:1708067
Chemical Abstracts (print):	158:76745
OpenAlex:	W2087366412

DB	Citing
Web of science	35
Scopus	38
Elibrary	38
OpenAlex	39