Abstract

AbstractTo address the increasing levels of carbon dioxide (CO2) in the atmosphere, various heterocyclic N/B‐based intramolecular frustrated Lewis pairs (IFLPs) have been experimentally and theoretically investigated. Reports have shown them to be a potential catalyst for CO2 sequestration, however, a comparative rationale of these IFLPs has not been reported. Thus, in the present work, we have proposed an uninvestigated IFLP based on i. e., 2‐boranyl‐1,3,5‐triazine (BT) and compared with previously reported borylated imidazole (Im) and pyrimidine (Prm) for CO2 abduction. The density functional theory (DFT) base calculations have been carried out to probe the reaction mechanism and thorough natural bond orbital analysis has been carried out to get deeper insights into the catalytic behavior of the proposed IFLPs. Further, the effect of substituting the hydrogens at the ring and the B atom of the considered IFLP, by −CH3, −Cl and −OH, on the catalytic behavior has been studied. The results show that the borylated triazines can be a potential catalyst for CO2 sequestration. Also, the catalytic behavior of the presented IFLPs can be modulated by appropriated substitutions.

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