Journal or Book Title
Ab initio methods demonstrate that internally protonated forms (a) of the molecules of carbatranes XC(SiH2CH2CH2)3N (X = H, F) are significantly more favorable than their externally protonated forms (b). The quantum-topological AIM approach suggests that the main reason for that is the formation of a medium-strength hydrogen C···H+N bond unknown previously in the silacarbanyl cations a.
American Chemical Society
Sidorkin, Valerii F.; Belogolova, Elena F.; Gordon, Mark S.; Lazarevich, Maria I.; and Lazareva, Nataliya F., "Hypercoordinated Carbon in 2,8,9-Sila- and Thia-Substituted Carbatranes" (2007). Chemistry Publications. 489.