Disjoint nonclassical hydrocarbons have very unstable lowest-lying singlet states: a PM3 study



Título del documento: Disjoint nonclassical hydrocarbons have very unstable lowest-lying singlet states: a PM3 study
Revista: Quimica nova
Base de datos: PERIÓDICA
Número de sistema: 000198143
ISSN: 0100-4042
Autores: 1
Instituciones: 1Mount Allison University, Department of Chemistry, Sackville, New Brunswick. Canadá
Año:
Periodo: Nov-Dic
Volumen: 24
Número: 6
Paginación: 719-723
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Teórico, divulgación
Resumen en inglés Earlier workers have suggested that disjoint hydrocarbons have nearly-degenerate lowest-lying singlet and triplet states while non-disjoint (or joint) hydrocarbons should be ground-state triplets. PM3 results for an appropriate selection of alternant hydrocarbons are inconsistent with that generalization: disjoint, nonclassical, alternant hydrocarbons show the strongest predilection for triplet ground states
Disciplinas: Química
Palabras clave: Fisicoquímica y química teórica,
Química orgánica,
Hidrocarburos,
Análisis computacional,
Unión no clásica,
Perturbación del orbital molecular,
Hidrocarburos clásicos,
Hidrocarburos no clásicos
Keyword: Chemistry,
Organic chemistry,
Physical and theoretical chemistry,
Hydrocarbons,
Computational analysis,
Joint nonclassical,
Perturbation molecular orbital,
Classical hydrocarbons,
Nonclassical hydrocarbons
Texto completo: Texto completo (Ver HTML)