Mono and dimetallic pyrene-imidazolylidene complexes of iridium (III) for the deuteration of organic substrates and the C-C coupling of alcohols
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Títol
Mono and dimetallic pyrene-imidazolylidene complexes of iridium (III) for the deuteration of organic substrates and the C-C coupling of alcoholsData de publicació
2016Editor
Royal Society of ChemistryISSN
1477-9226; 1477-9234Cita bibliogràfica
Dalton Trans., 2016, 45, 14154Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.rsc.org/en/content/articlelanding/2016/dt/c6dt02942f#!divAbstractResum
Three different Ir(III) complexes with pyrene-containing N-heterocyclic carbenes have been prepared and
characterized. Two complexes contain a monodentate pyrene-imidazolylidene ligand, and have the formulae
[IrCp ... [+]
Three different Ir(III) complexes with pyrene-containing N-heterocyclic carbenes have been prepared and
characterized. Two complexes contain a monodentate pyrene-imidazolylidene ligand, and have the formulae
[IrCp*Cl2(pyrene-NHC)] and [IrCp*(CO3)(pyrene-NHC)]. The third complex is a dimetallic complex
with a pyrene-di-imidazolylidene bridging ligand, with the formula [{IrCp*(CO3)}2(μ-pyrene-di-NHC)]. The
catalytic activity of the three complexes was tested in the H/D exchange of organic substrates, and in the
β-alkylation of 1-phenylethanol with primary alcohols. In the deuteration of organic substrates, the carbonate
complexes are active even in the absence of additives. The dimetallic complex is the most active
one in the catalytic coupling of alcohols, a result that may be interpreted as a consequence of the cooperativity
between the two metal centres. [-]
Publicat a
Dalton Trans., 2016, 45, 14154–14159Drets d'accés
This journal is © The Royal Society of Chemistry 2016. Reproduced by permission of The Royal Society of Chemistry
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