Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/21926
Título: | Fluorescence and two-photon absorption of push-pull aryl(bi)thiophenes: structure-property relationships |
Autor(es): | Genin, Emile Hugues, Vincent Clermont, Guillaume Herbivo, Cyril Comel, Alain Castro, M. Cidália R. Raposo, M. Manuela M. Blanchard-Desce, Mireille |
Palavras-chave: | TPA Bioimaging Thiophene Fluorescent probes Push-pull systems Dicyanovinyl derivatives Synthesis Knoevenagel condensation Aldehydes NLO |
Data: | 2012 |
Editora: | Royal Society of Chemistry |
Revista: | Photochemical & Photobiological Sciences |
Resumo(s): | Photophysical and TPA properties of series of push-pull aryl(bi)thiophene chromophores bearing electron-donating (D) and electron-withdrawing (A) end-groups of increasing strength are presented. All compounds show an intense Intramolecular Charge Transfer (ICT) absorption band in the visible region. Increasing the D and/or A strength as well as the length of the conjugated path induces a bathochromic and hyperchromic of the absorption band as reported for analogous push-pull polyenes. Yet, in contrast with corresponding push-pull polyenes, a significant increase in fluorescence is observed. In particular, chromophores built from a phenyl-bithienyl conjugated path and bearing strong D and A end-groups were found to combine very large one and two-photon brightness as well as strong emission in the red/NIR region. These molecules hold promises as biphotonic fluorescent probes for bioimaging. |
Tipo: | Artigo |
Descrição: | Special Issue in honor of Jean-Pierre Sauvage |
URI: | https://hdl.handle.net/1822/21926 |
DOI: | 10.1039/c2pp25258a |
ISSN: | 1474-905X |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
J. Photochem. Photobiol. Sci. 2102.pdf | manuscript | 1,66 MB | Adobe PDF | Ver/Abrir |
J. Photochem. Photobiol. Sci.- Supp. information.pdf | Manuscript-Supporting information | 158,55 kB | Adobe PDF | Ver/Abrir |