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Sequential Double Dearomatization of the Pyrazolate-Based “Two-in-One” Pincer Ligand in a Dinuclear Rhodium(I) Complex

dc.contributor.authorGers-Barlag, Alexander
dc.contributor.authorGoursot, Pierre
dc.contributor.authorLi, Ming
dc.contributor.authorDechert, Sebastian
dc.contributor.authorMeyer, Franc
dc.date.accessioned2020-01-15T10:50:46Z
dc.date.available2020-01-15T10:50:46Z
dc.date.issued2019de
dc.relation.ISSN1434-1948de
dc.identifier.urihttp://resolver.sub.uni-goettingen.de/purl?gs-1/17119
dc.description.abstractA binucleating pyrazolate‐based ligand providing two tridentate PNN compartments is shown to form a dinuclear rhodium(I) complex [L{Rh(CO)}2](PF6) (1) that can be deprotonated at both side arm methylene groups between pyridine and phosphino donors to give K[L**{Rh(CO)}2] (3). Sequential twofold deprotonation has been monitored by NMR and UV/Vis spectroscopy and proceeds via the neutral intermediate L*{Rh(CO)}2 (2). X‐ray crystallographic characterization of 1 and the K[2,2,2]+ salt 3′ ([2,2,2] is a cryptand) evidences pyridine dearomatization upon deprotonation, and all spectroscopic and structural signatures are in good agreement with those of related mononuclear rhodium complexes based on a common PNN pincer ligand, which corroborates that pyrazolate‐bridged L– is best described as a scaffold with two pincer‐type subunits.de
dc.language.isoengde
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectPincer ligands; Rhodium; Bimetallic complexes; Pyrazolate ligands; Structure elucidation; Dearomatizationde
dc.subject.ddc540
dc.titleSequential Double Dearomatization of the Pyrazolate-Based “Two-in-One” Pincer Ligand in a Dinuclear Rhodium(I) Complexde
dc.typejournalArticlede
dc.identifier.doi10.1002/ejic.201900477
dc.type.versionpublishedVersionde
dc.bibliographicCitation.volume2019de
dc.bibliographicCitation.issue28de
dc.bibliographicCitation.firstPage3329de
dc.bibliographicCitation.lastPage3334de
dc.type.subtypejournalArticle
dc.description.statuspeerReviewedde
dc.bibliographicCitation.journalEuropean Journal of Inorganic Chemistryde
dc.title.subtitleSequential Double Dearomatization of the Pyrazolate-Based “Two-in-One” Pincer Ligand in a Dinuclear Rhodium(I) Complex


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