Investigation of metallation/transmetallation reactions to synthesize a series of CCC–NHC Co pincer complexes and their X-ray structures

CCC–NHC pincer cobalt complexes were synthesized by transmetallation with an isolated CCC–Zr complex using CoCl2 or Co(acac)3 to yield monomeric, dimeric, and bis-ligated cobalt pincer complexes. [Display omitted] Formation of Co(III) complexes was achieved via transmetallation with CoCl2 or Co(acac...

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Published inPolyhedron Vol. 151; pp. 568 - 574
Main Authors Denny, Jason A., Lamb, Robert W., Reilly, Sean W., Donnadieu, Bruno, Webster, Charles Edwin, Hollis, T. Keith
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2018
Subjects
Carbene
CCC–NHC
Cobalt
Pincer
Transmetallation
Carbene
Pincer
Transmetallation
CCC–NHC
Cobalt
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Summary:CCC–NHC pincer cobalt complexes were synthesized by transmetallation with an isolated CCC–Zr complex using CoCl2 or Co(acac)3 to yield monomeric, dimeric, and bis-ligated cobalt pincer complexes. [Display omitted] Formation of Co(III) complexes was achieved via transmetallation with CoCl2 or Co(acac)3 of an isolated CCC–NHC pincer Zr complex. Four new crystal structures are reported, which expand upon the limited scope of first-row transition metal CCC–NHC pincer complexes. DFT computations were utilized to analyze the thermodynamics of cleaving a dimeric cobalt pincer complex with dimethylamine.
ISSN:0277-5387
DOI:10.1016/j.poly.2018.05.040