Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/74864
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Rashidnejad, Hamid | por |
dc.contributor.author | Ramezanitaghartapeh, Mohammad | por |
dc.contributor.author | Pesyan, Nader Noroozi | por |
dc.contributor.author | Mahon, Peter J. | por |
dc.contributor.author | Raposo, M. Manuela M. | por |
dc.contributor.author | Coelho, Paulo J. | por |
dc.contributor.author | Lup, Andrew Ng Kay | por |
dc.contributor.author | Soltani, Alireza | por |
dc.date.accessioned | 2021-12-06T11:11:46Z | - |
dc.date.available | 2021-12-06T11:11:46Z | - |
dc.date.issued | 2021-01-05 | - |
dc.identifier.issn | 0022-2860 | por |
dc.identifier.uri | https://hdl.handle.net/1822/74864 | - |
dc.description.abstract | A series of novel substituted-azo dyes 8-(aryldiazenyl)quinolin-5-ol (5a-i) were synthesized by the coupling reaction of 5-hydroxyquinoline with diazotized aniline derivatives in the presence of NaNO2 in HCl/H2O mixture. The study of the spectroscopic and solvatochromic properties were performed by FT-IR, 1H and 13C-NMR and UV-Visible spectroscopies. The tautomerism of these dyes was studied using the deuteration technique and solvatochromic measurements. Photochromic properties of these 5-hydroxyquinoline azo dyes were also examined via E/Z and Z/E photochemical isomerization reactions and compared with the existing 8-hydroxyquinoline analogous. The novel substituted-azo dyes exhibited higher Z/E thermal isomerization rates and have larger absorbance wavelength range than their 8-hydroxyquinoline analogous, making them potential molecular switches. | por |
dc.description.sponsorship | FCT - Swinburne University of Technology(UID/QUI/00686/2020) | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | UID/QUI/00686/2020 | por |
dc.rights | openAccess | por |
dc.subject | 5-hydroxyquinoline | por |
dc.subject | 8-hydroxyquinoline | por |
dc.subject | Heterocyclic azo dyes | por |
dc.subject | Photochromism | por |
dc.subject | Solvatochromism | por |
dc.subject | Tautomerism | por |
dc.title | A comprehensive spectroscopic, solvatochromic and photochemical analysis of 5-hydroxyquinoline and 8-hydroxyquinoline mono-azo dyes | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://doi.org/10.1016/j.molstruc.2020.129323 | por |
oaire.citationVolume | 1223 | por |
dc.date.updated | 2021-12-05T11:01:34Z | - |
dc.identifier.doi | 10.1016/j.molstruc.2020.129323 | por |
dc.subject.wos | Science & Technology | - |
sdum.export.identifier | 11006 | - |
sdum.journal | Journal of Molecular Structure | por |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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J. Mol. Structure 2020, 1223, 129323.pdf | 2,43 MB | Adobe PDF | Ver/Abrir |