Luz: um raro produto de reação
AUTOR(ES)
Bartoloni, Fernando Heering, Ciscato, Luiz Francisco Monteiro Leite, Peixoto, Mônica Melchioretto de Medeiros, Santos, Ana Paula Fileno dos, Santos, Cerize da Silva, Oliveira, Sandro de, Augusto, Felipe Alberto, Pagano, Ana Paula Eskildsen, Baader, Wilhelm Josef, Bastos, Erick Leite
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2011
RESUMO
The production of visible light by chemical reactions constitutes interesting and fascinating phenomena and several reaction mechanisms are discussed to rationalize excited state formation. Most efficient chemiluminescence reactions are thought to involve one or more electron transfer steps and chemiexcitation is believed to occur by radical annihilation. A brief introduction to the general principles of light production and the main known chemiexcitation mechanisms will be given here. Subsequently, recent results on the mechanistic elucidation of efficient chemiluminescence systems, as the peroxyoxalate reaction, the induced decomposition of phenoxy-substituted 1,2-dioxetanes and the catalyzed decomposition of new a-peroxylactones will be discussed.
