de Las Nieves-Piña M, Frontera A, Mooibroek TJ, Bauzá A. Frustrated Lewis Pairs Based on Carbon⋅⋅⋅Carbon
+ Tetrel Bonds: A DFT Study.
Chemphyschem 2021;
22:2478-2483. [PMID:
34596315 DOI:
10.1002/cphc.202100613]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/30/2021] [Indexed: 01/02/2023]
Abstract
The ability of Triangulenium (TA+ ) compounds to form Frustrated Lewis Pairs (FLPs) with N-HeteroCycle Carbenes (NHCs) is analysed in this manuscript at the PBE0-D3/def2-TZVP level of theory. We have used six TA+ -based moieties, three presenting similar bridging groups (O (trioxo), -CH2 (triaryl) and -NH (triaza)) and another three mixing, O, -CH2 and NH moieties. In addition, several aryl-substituted NHCs have been used as electron donor moieties to undergo carbon⋅⋅⋅carbon+ tetrel bonds with the TA+ derivatives. More precisely, -Me,-iPr, -tBu and -Ph groups were used. Finally, we have used Bader's quantum theory of "atoms in molecules" (QTAIM) and Natural Bonding Analysis (NBO) to characterize the carbon⋅⋅⋅carbon+ tetrel bonds described herein. We expect the results gathered herein will be useful for further exploitation of carbon⋅⋅⋅carbon+ bonds in the formation of FLPs as well as to expand the current knowledge of tetrel bonds to the fields of synthetic chemistry and catalysis.
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