Revista: | Quimica nova |
Base de datos: | PERIÓDICA |
Número de sistema: | 000198557 |
ISSN: | 0100-4042 |
Autores: | Nery, Ana1 Baader, Wilhelm |
Instituciones: | 1Universidade de Sao Paulo, Instituto de Quimica, Sao Paulo. Brasil |
Año: | 2001 |
Periodo: | Sep-Oct |
Volumen: | 24 |
Número: | 5 |
Paginación: | 626-636 |
País: | Brasil |
Idioma: | Portugués |
Tipo de documento: | Revisión bibliográfica |
Enfoque: | Teórico, divulgación |
Resumen en inglés | In this review article, we give a general introduction on the mechanisms involved in organic chemiluminescence, where three basic models for excited state formation are presented. The chemiluminescence properties of 1,2-dioxetanes - four membered ring peroxides - are briefly outlined in the second part. In the main part, the mechanisms involved in the decomposition of 1,2-dioxetanes and analogous peroxides are discussed: (i) the unimolecular decomposition of 1,2-dioxetanes; (ii) the electron transfer catalyzed decomposition of peroxides by an intermolecular CIEEL (Chemically Initiated Electron Exchange Luminescence) mechanism; (iii) 1,2-dioxetane decomposition catalyzed by an intramolecular electron transfer mechanism (intramolecular CIEEL). Special emphasis is given to the latter subject, where recent examples with potential analytical applications are presented |
Disciplinas: | Química |
Palabras clave: | Química analítica, Química orgánica, Peróxidos orgánicos, Quimioluminiscencia, Descomposición |
Keyword: | Chemistry, Analytical chemistry, Organic chemistry, Organic peroxides, Chemiluminescence, Decomposition |
Texto completo: | Texto completo (Ver HTML) |