Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Kinetic studies of the nucleophilic quenching of photoexcited nitroaryl ethers (NArE) by bromide ions in cationic micellar solution

1994; Elsevier BV; Volume: 50; Issue: 10 Linguagem: Inglês

10.1016/s0040-4020(01)81107-8

1464-5416

Antônio Cláudio Tedesco, Rose Mary Zumstein Georgetto Naal, Júlio Cesar Carreiro, João Baptista Sargi Bonilha,

Spectroscopy and Quantum Chemical Studies

Nucleophilic aromatic photosubstitution reactions of nitroaryl ethers (NArE) with sodium hydroxide were studied in aqueous solution containing N-hexadecyl-N,N,N-trimethylammonium chloride micelles. The increase of quantum yields depended on the length of the n-alkyl chain (maximum for methyl and minimum for decyl). The dependence on the surfactant concentration was in accordance with the mechanistic model of aromatic nucleophilic photosubstitution.