Ru(ii)-dmso complexes containing azole-based ligands: Synthesis, linkage isomerism and catalytic behaviour
dc.contributor.author
dc.date.accessioned
2017-03-02T11:53:30Z
dc.date.available
2017-03-02T11:53:30Z
dc.date.issued
2016-02-21
dc.identifier.issn
1477-9226
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dc.description.abstract
The reaction of cis,fac-[RuCl2(dmso-S)3(dmso-O)], 1, with different azole (L) ligands leads to new [RuCl2(L)(dmso-S)3] compounds (L = CH3-pz-H, 2; NO2-pz-H, 3; CF3-pz-H, 4 and Br-Hind, 5). Complexes 2-5 have been characterized by analytical, spectroscopic and electrochemical techniques as well as by monocrystal X-ray diffraction analysis. Upon oxidation to Ru(iii) the complexes undergo linkage isomerization of a S-bound dmso ligand and the corresponding kinetic rates as well as the thermodynamic properties have been determined for compound 2 and also for the previously described [RuIICl2(pypz-H)(dmso-S)2] (pypz-H = 2-(3-pyrazolyl)pyridine), 6, from cyclic voltammetries performed at different scan rates. The exposure of compound 2 to visible light in acetonitrile produces the substitution of one dmso ligand by a solvent molecule generating a new compound, 2′. The irradiation of solutions of compounds 2 and 6 in chloroform leads in both cases to the substitution of one dmso by a chlorido ligand in parallel to the oxidation of Ru(ii) to Ru(iii) generating complexes 2′′ and 6′ respectively. The reactivity of compounds 2-6 has been tested with regard to the hydration of nitriles in water as a solvent, displaying in all cases good performance and selectivity for the corresponding amides
dc.description.sponsorship
This research has been financed by MINECO of Spain and AGAUR (Generalitat de Catalunya) through projects CTQ2010-21532-C02-01 and 2014-SGR-149
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application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
dc.relation
info:eu-repo/grantAgreement/MICINN//CTQ2010-21532-C02-01/ES/MIMETIZACION DE PROCESOS BIOINORGANICOS Y APLICACIONES CATALITICAS CON COMPUESTOS DE METALES DE TRANSICION./
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Reproducció digital del document publicat a: http://dx.doi.org/10.1039/c5dt04376j
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© Dalton Transactions, 2016, vol. 45, núm. 7, p. 3163-3174
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Articles publicats (D-Q)
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Tots els drets reservats
dc.subject
dc.title
Ru(ii)-dmso complexes containing azole-based ligands: Synthesis, linkage isomerism and catalytic behaviour
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
024225
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dc.relation.ProjectAcronym
dc.identifier.eissn
1477-9234