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Divergent Reactivity of CO2 and CO and Related Substrates at the Nickel Carbon Double Bond of (PCcarbeneP)Ni(II) Pincer Complexes

preprint
submitted on 26.06.2018 and posted on 27.06.2018 by Etienne A. LaPierre, Warren Piers, Chris Gendy
The addition of carbon monoxide (CO), carbon dioxide (CO2) and isoelectronic isocyanide and isocyanates to the nickel carbene bond in PCcarbeneP pincer complexes is reported. For CO and CNR, irreversible group transfer reactions are observed, while for CO2, a reversible 2+2 addition to the carbene moiety occurs. The course of the CO and CO2 reactions are strongly affected by the nature of the PCcarbeneP pincer ligand framework and a new more rigid ligand based on a 10,10-dimethyl-9,10-dihydroanthracene core was designed in order to study these reactions, illustrating the profound effect of small changes in ligand structure on reaction outcomes.

History

Email Address of Submitting Author

wpiers@ucalgary.ca

Institution

University of Calgary

Country

Canada

ORCID For Submitting Author

0000-0003-2278-1269

Declaration of Conflict of Interest

No conflict of interest.

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