N-heterocyclic carbene bonding to cobalt porphyrin complexes

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dc.contributor.author Albrecht, Martin
dc.contributor.author Maji, Pathik
dc.contributor.author Häusl, Christina
dc.contributor.author Monney, Angèle
dc.contributor.author Müller-Bunz, Helge
dc.date.accessioned 2012-06-07T15:20:53Z
dc.date.available 2012-06-07T15:20:53Z
dc.date.copyright 2011 Elsevier B.V. en
dc.date.issued 2012-01
dc.identifier.citation Inorganica Chimica Acta en
dc.identifier.uri http://hdl.handle.net/10197/3626
dc.description.abstract N-heterocyclic carbene (NHC) coordination to a cobalt(III) center embedded in a porphyrin scaffold has been accomplished by decarboxylation from N,N’-dimethylimidazolium-2-carboxylate in the presence of Co(TPP)Cl (TPP = 5,10,15,20-tetraphenylporphyrin). The distal chloride ligand in the resulting complexes Co(NHC)(TPP)Cl was successfully substituted with imidazoles and alcohols. Single crystal X-ray diffraction of the latter complexes Co(NHC)(TPP)(ROH) (R = Me, Et) revealed a pronounced ruffling of the porphyrin macrocycle due to the two ortho methyl groups in the carbene ligand and because of the relatively short distance between the cobalt center and the carbene ligand. Spectroscopic investigations support a substantial porphyrin dearomatization upon NHC bonding. en
dc.description.sponsorship European Research Council en
dc.description.sponsorship Other funder en
dc.format.extent 1071280 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier en
dc.rights This is the author’s version of a work that was accepted for publication in Inorganica Chimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Inorganica Chimica Acta (2012) DOI: http://dx.doi.org/10.1016/j.ica.2011.08.039 en
dc.subject Cobalt en
dc.subject N-heterocyclic carbene en
dc.subject Porphyrin en
dc.subject Imidazole en
dc.subject Steric strain en
dc.subject Ligand substitution en
dc.subject.lcsh Cobalt en
dc.subject.lcsh Carbenes (Methylene compounds) en
dc.subject.lcsh Porphyrins en
dc.subject.lcsh Imidazoles en
dc.title N-heterocyclic carbene bonding to cobalt porphyrin complexes en
dc.type Journal Article en
dc.internal.availability Full text available en
dc.status Peer reviewed en
dc.identifier.volume 380 en
dc.identifier.startpage 90 en
dc.identifier.endpage 95 en
dc.citation.other Young Investigator Award Special Issue en
dc.identifier.doi 10.1016/j.ica.2011.08.039
dc.neeo.contributor Albrecht|Martin|aut| en
dc.neeo.contributor Maji|Pathik|aut| en
dc.neeo.contributor Häusl|Christina|aut| en
dc.neeo.contributor Monney|Angèle|aut| en
dc.neeo.contributor Müller-Bunz|Helge|aut| en
dc.description.othersponsorship Swiss National Science Foundation en
dc.description.admin sp, ke, jo, li - TS 08.05.12 en

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