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KEY STRUCTURAL FEATURES IN ELECTROCHEMISTRY OF Cr(0) AND Fe(0) AMINOCARBENE COMPLEXES

SYSNO ASEP	0361580
Druh ASEP	C - Konferenční příspěvek (mezinárodní konf.)
Zařazení RIV	D - Článek ve sborníku
Název	KEY STRUCTURAL FEATURES IN ELECTROCHEMISTRY OF Cr(0) AND Fe(0) AMINOCARBENE COMPLEXES
Tvůrce(i)	Hoskovcová, I. (CZ) Dvořák, D. (CZ) Tobrman, T. (CZ) Záliš, Stanislav (UFCH-W)_{RID, ORCID} Ludvík, Jiří (UFCH-W)_{RID, ORCID}
Zdroj.dok.	New Trends in Coordination, Bioinorganic and Applied Inorganic Chemistry. - Bratislava : Slovak University of Technology, 2011 / Melník M. ; Segĺa P. ; Tatarko M. - ISBN 978-80-227-3509-4
Rozsah stran	s. 155-169
Poč.str.	16 s.
Akce	International Conference on Coordination and Bioinorganic Chemistry /23./
Datum konání	05.06.2011-10.06.2011
Místo konání	Smolenice
Země	SK - Slovensko
Typ akce	WRD
Jazyk dok.	eng - angličtina
Země vyd.	SK - Slovensko
Klíč. slova	electrochemistry ; aminocarbene complexes
Vědní obor RIV	CG - Elektrochemie
CEP	IAA400400813 GA AV ČR - Akademie věd
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
Anotace	In our study, we have electrochemically investigated oxidation and reduction of about 40 chelated and non-chelated aminocarbene complexes of chromium (n=5) and iron (n=4) where R stands for p-substituted benzene ring or a heterocycle. Eox and Ered values were treated by the Linear Free Energy Relationship (LFER) approach to find the type of structural modifications responsible for their changes. Potential of oxidation depends on the nature of the central metal atom and on the presence of pi-accepting ligands. Eox of the Cr complexes reflects only the number of CO ligands. Behaviour of the Fe compounds, with lower coordination number and shorter M – L bonds, shows that the eta2-bonded allyl group and the carbene double bond also act as important pi-acceptors. Ered is governed mainly by substitution of the carbene carbon atom and it is sensitive to the presence of a pi-conjugated electron system.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2012

Počet záznamů: 1