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Synthesis and electrochemical study of iron, chromium and tungsten aminocarbenes Role of ligand structure and central metal nature

SYSNO ASEP	0357153
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Synthesis and electrochemical study of iron, chromium and tungsten aminocarbenes Role of ligand structure and central metal nature
Author(s)	Hoskovcová, I. (CZ) Roháčová, J. (CZ) Dvořák, D. (CZ) Tobrman, T. (CZ) Záliš, Stanislav (UFCH-W)_{RID, ORCID} Zvěřinová, R. (CZ) Ludvík, Jiří (UFCH-W)_{RID, ORCID}
Source Title	Electrochimica acta. - : Elsevier - ISSN 0013-4686 Roč. 55, č. 27 (2010), s. 8341-8351
Number of pages	11 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	Fischer aminocarbene complexes ; Voltammetry-polarography ; HOMO-LUMO displacement
Subject RIV	CG - Electrochemistry
R&D Projects	IAA400400813 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000284434700081
DOI	10.1016/j.electacta.2010.02.057
Annotation	Several series of Fischer-type aminocarbene complexes with central Fe Cr or W atoms and with various carbene substitution were synthesized and electrochemically investigated by dc-polarography and cyclic voltammetry. The shifts and changes of reduction and oxidation potentials were evaluated using the linear free energy relationship (LFER) approach with respect to (a) the type of coordination (b) the substitution on the carbene ligand and (c) the nature of the central metal atom. The analysis of measured data confirms that the reduction center is localized on the carbene moiety and is strongly influenced by both electronic and sterical properties of its substituents. The oxidation proceeds on the metal and depends mainly on its nature and on the pi-acidity of the ligands. Electrochemistry thus represents an important experimental approach to the description and understanding of the molecular electronic structure and redox properties.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2011

Number of the records: 1