Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/57325
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Batista, Rosa Maria Ferreira | por |
dc.contributor.author | Costa, Susana P. G. | por |
dc.contributor.author | Belsley, M. | por |
dc.contributor.author | Raposo, M. Manuela M. | por |
dc.date.accessioned | 2018-12-17T08:43:48Z | - |
dc.date.available | 2018-12-17T08:43:48Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Batista, R. M. F.; Costa, S. P. G.; Belsley, M.; Raposo, M. M. M.; Arylthienyl-vinyl-benzothiazoles as efficient second harmonic generators (SHG) for nonlinear optics. Proceedings of the 22nd International Electronic Conference on Synthetic Organic Chemistry, Sciforum Electronic Conferences Series, doi: 10.3390/ecsoc-22-05702. | por |
dc.identifier.uri | https://hdl.handle.net/1822/57325 | - |
dc.description.abstract | New push-pull second harmonic generation (SHG) chromophores 2 were synthesized in order to study their linear and nonlinear optical properties. The donor-acceptor π-conjugated systems 2 were prepared in good to excellent yields by a simple aldol-type condensation of the precursor aldehydes 1 with 6-nitro-2-methyl-1,3-benzothiazole in the presence of NaOH. Hyper-Rayleigh scattering in dioxane solutions was used to evaluate their second-order nonlinear optical properties. The experimental results showed that the optical (linear and nonlinear) properties are influenced by the electron-donor strength of the groups of the π-conjugated bridge. The vinyl-benzothiazole derivative 2b, with methoxyl as donor group, exhibited the largest first hyperpolarizability β (1660 × 10-30 esu, 40 times greater than the standard reference pNA molecule) and the highest decomposition temperature (Td = 360 ºC). The good balance between nonlinearity and thermal stability makes this compound a promising candidate as second harmonic generators (SHG) for nonlinear optics. | por |
dc.description.sponsorship | We are grateful to the FUNDAÇÃO PARA A CIÊNCIA E TECNOLOGIA (FCT) for a post-doctoral grant to R.M.F. Batista (SFRH/BPD/79333/2011), and FEDER (European Fund for Regional Development)-COMPETE-QREN-EU for financial support through the Chemistry Research Centre of the University of Minho (Ref. UID/QUI/00686/2013 and UID/QUI/0686/2016) and the Physics Centers of the Universities of Minho and Porto (Ref. UID/FIS/04650/2013). The NMR spectrometer Bruker Avance III 400 is part of the National NMR Network and was purchased within the framework of the National Program for Scientific Re-equipment, contract REDE/1517/RMN/2005 with funds from POCI 2010 (FEDER) and FCT. | por |
dc.description.sponsorship | UID/QUI/0686/2013, UID/QUI/0686/2016. | por |
dc.language.iso | eng | por |
dc.publisher | MDPI AG | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F79333%2F2011/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147414/PT | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Benzothiazole | por |
dc.subject | Nonlinear optics | por |
dc.subject | Second Harmonic Generators | por |
dc.subject | Thiophene | por |
dc.title | Arylthienyl-vinyl-benzothiazoles as efficient second harmonic generators (SHG) for nonlinear optics | por |
dc.type | conferencePaper | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://sciforum.net/manuscripts/5702/manuscript.pdf | por |
oaire.citationConferenceDate | 15 Nov. - 15 Dez. 2018 | por |
sdum.event.title | 22nd International Electronic Conference on Synthetic Organic Chemistry (ECSOC 2018) | por |
sdum.event.type | conference | por |
dc.identifier.doi | 10.3390/ecsoc-22-05702 | por |
dc.subject.fos | Ciências Naturais::Ciências Químicas | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
sdum.conferencePublication | Proceedings of the 22nd International Electronic Conference on Synthetic Organic Chemistry | por |
Aparece nas coleções: | CDQuim - Comunicações e Proceedings |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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ECSOC-2018 proceeding.pdf | 468,99 kB | Adobe PDF | Ver/Abrir |
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