Korelace mezi redoxním chováním Fischerových karbenů a jejich strukturou a reaktivitou

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F07%3A00018279" target="_blank" >RIV/60461373:22310/07:00018279 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A Correlation between Redox Behaviour of Fischer-type Carbene Complexes and their Structure and Reactivity

Popis výsledku v původním jazyce

A set of about 30 Fischer-type aminocarbene complexes of Cr, W and Fe was synthesized, of general formulae [(CO)nM = C(NMe2)(Ph-p-R)], n = 5 for M = Cr or W , n = 4 for M = Fe; [(CO)nM=C(NMe2)(R')]; [(CO)n-1M =C{N(CH2CH=CH2)(CH2CH =CH2)} (Ph-p-R)] , and[(CO)5Cr=C(NMe2)(Ph-o-Me-p-R)]. Values of oxidation potential Eox, reduction potential Ered and their difference ?E = Eox - Ered were correlated with 1) nature of the central metal, 2) carbene carbon substitution (using the Linear Free Energy Relationship (LFER) approach), 3) coordination sphere geometry 4) bonding abilities of ligands. It was found that the reduction takes place on the carbene carbon atom and Ered depends strongly on the ligand substitution, being influenced by both sterical and inductive effects of the substituents. On the other hand, oxidation is practically independent on the ligand substitution; it is determined mainly by nature of the central metal atom and number of carbonyl groups. The experimental results are c

Název v anglickém jazyce

A Correlation between Redox Behaviour of Fischer-type Carbene Complexes and their Structure and Reactivity

Popis výsledku anglicky

A set of about 30 Fischer-type aminocarbene complexes of Cr, W and Fe was synthesized, of general formulae [(CO)nM = C(NMe2)(Ph-p-R)], n = 5 for M = Cr or W , n = 4 for M = Fe; [(CO)nM=C(NMe2)(R')]; [(CO)n-1M =C{N(CH2CH=CH2)(CH2CH =CH2)} (Ph-p-R)] , and[(CO)5Cr=C(NMe2)(Ph-o-Me-p-R)]. Values of oxidation potential Eox, reduction potential Ered and their difference ?E = Eox - Ered were correlated with 1) nature of the central metal, 2) carbene carbon substitution (using the Linear Free Energy Relationship (LFER) approach), 3) coordination sphere geometry 4) bonding abilities of ligands. It was found that the reduction takes place on the carbene carbon atom and Ered depends strongly on the ligand substitution, being influenced by both sterical and inductive effects of the substituents. On the other hand, oxidation is practically independent on the ligand substitution; it is determined mainly by nature of the central metal atom and number of carbonyl groups. The experimental results are c

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA203%2F04%2F0487" target="_blank" >GA203/04/0487: Příprava, reaktivita a elektrochemie nových typů aminokarbenových komplexů chromu a železa</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Achievements in Coordination, Bioinorganic and Applied Inorganic Chemistry

ISSN

1335-308X

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

21

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

15

Strana od-do

45-60

Kód UT WoS článku

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EID výsledku v databázi Scopus

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