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Full-Text Articles in Physical Sciences and Mathematics
Carbene Triel Bonds Between Trr3 (Tr=B, Al) And N-Heterocyclic Carbenes, Zongqing Chi, Wenbo Dong, Qingzhong Li, Xin Yang, Steve Scheiner, Shufeng Liu
Carbene Triel Bonds Between Trr3 (Tr=B, Al) And N-Heterocyclic Carbenes, Zongqing Chi, Wenbo Dong, Qingzhong Li, Xin Yang, Steve Scheiner, Shufeng Liu
Chemistry and Biochemistry Faculty Publications
The carbene triel bond is predicted and characterized by theoretical calculations. The C lone pair of N‐heterocyclic carbenes (NHCs) is allowed to interact with the central triel atom of TrR3 (Tr = B and Al; R = H, F, Cl, and Br). The ensuing bond is very strong, with an interaction energy of nearly 90 kcal/mol. Replacement of the C lone pair by that of either N or Si weakens the binding. The bond is strengthened by electron‐withdrawing substituents on the triel atom, and the reverse occurs with substitution on the NHC. However, these effects do not strictly follow …