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boryl_compu_submit.pdf (1.02 MB)

Evaluation of the Sigma Donating and Pi Accepting Properties of N-Heterocyclic Boryl Anions

preprint
submitted on 12.08.2019, 02:54 and posted on 12.08.2019, 15:33 by Lorenzo Romeo, Aishvaradeep Kaur, David Wilson, Caleb D. Martin, Jason Dutton
The relative σ donor and π accepting capacities of a range of synthetically relevant boryl anions have been evaluated by examining the geometric, thermochemical and electronic properties of their adducts to the Li+ cation and Se atom, as compared to the analogous neutral NHCs, by theoretical methods. The results indicate that boryl anions have a weaker π accepting capability than NHCs, but it is still a nonnegligible factor in the bonding contributions between boryl and the Se atom. The tuneability of the π accepting capacity of boryl anions is similar to that of NHCs, indicating a similar potential for modification of the electronic properties of metal complexes incorporating either boryl or NHC ligands. In all cases, the boryl ligands were found to be superior σ donors to NHCs

History

Email Address of Submitting Author

j.duton@latrobe.edu.au

Institution

La Trobe University

Country

Australia

ORCID For Submitting Author

0000-0002-0361-4441

Declaration of Conflict of Interest

None

Exports

ChemRxiv

Keywords

Exports