Effect of a Heteroatom on Bonding Patterns and Triradical Stabilization Energies of 2,4,6-Tridehydropyridine versus 1,3,5-Tridehydrobenzene - Manohar, Prashant U; Koziol, Lucas; Krylov, Anna I (The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 2010)