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