A theoretical study of the UV absorption of 4-methylbenzylidene camphor: from the UVB to the UVA region

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Luis Pinto da Silva (Autor) Outra; Paulo J O Ferreira (Autor) Outra; Margarida S Miranda (Autor) Outra; Joaquim C G E Esteves da Silva (Autor) FCUP

Revista

Título: Photochemical & Photobiological Sciences

Vol. 14

Páginas: 465-472

ISSN: 1474-905X

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 9 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-00A-5YQ

DOI: 10.1039/c4pp00392f

Abstract (EN): In this study, a theoretical approach was used to study the UV absorption of the UVB filter, 4- methylbenzylidene camphor. The main objective of this work was to design new UVA filters based on this rather photo- stable compound, so that photo- degradation in this UV region can be avoided without the use of other molecules. This objective was achieved by the simultaneous addition of two appropriate substituents, which led to red- shifts of up to 0.69 eV while maintaining appreciable oscillator strength. Also, useful structure- energy relationships were derived, which allow for the development of more UVA filters based on 4- methylbenzylidene camphor.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8