Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/32134
Título: | Synthesis and characterization of the photochromic properties of new pyrrolidene dyes bearing benzothiazole or benzothiazolium acceptor groups |
Autor(es): | Castro, M. Cidália R. Coelho, Paulo J. Raposo, M. Manuela M. |
Palavras-chave: | Pyrrole Benzothiazole Schiff bases Benzothiazolium ethene dye Photochromism Molecular switches Synthesis |
Data: | 2013 |
Editora: | MDPI |
Resumo(s): | A series of novel pyrrolidene imines and an ethene derivative bearing functionalized benzothiazole or benzothiazolium acceptor groups were synthesized, characterized and their photochromic properties, at room temperature, evaluated using the photostationary technique. While the imines did not show significant photochromic properties, visible irradiation of the diarylethene derivative led to a fast trans-cis isomerization of the C=C bond, with the concomitant change in the absorption spectrum. The cis isomer is not thermally stable and, in the absence of light, re-isomerizes slowly back to the trans form. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/32134 |
DOI: | 10.3390/ecsoc-17-a029 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDQuim - Comunicações e Proceedings |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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ecsoc-17_2235_manuscript.pdf Acesso restrito! | 268,69 kB | Adobe PDF | Ver/Abrir |