Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/49499
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 | Raposo, M. Manuela M. | por |
dc.date.accessioned | 2018-01-22T12:56:46Z | - |
dc.date.available | 2020-01-01T07:00:34Z | - |
dc.date.issued | 2017 | - |
dc.date.submitted | 2017 | - |
dc.identifier.citation | Batista, R. M. F.; Costa, S. P. G.; Raposo, M. M. M. New thienylpyrrolyl-cyanoacetic acid derivatives: synthesis and evaluation of the optical and solvatochromic properties. 21st Int. Electron. Conf. Synth. Org. Chem., 1–30 November 2017; Sciforum Electronic Conference Series, 2017, Vol. 21; doi:10.3390/ecsoc-21-04772. | por |
dc.identifier.uri | https://hdl.handle.net/1822/49499 | - |
dc.description.abstract | Among the organic molecules, the so called push-pull or dipolar molecules (D-π-A) offer versatility of synthesis and ability to modulate their photophysical and photochemical properties. The cyanoacetic acid moiety has been used extensively as the acceptor group in D-π-A molecules motivated by its easy/inexpensive synthesis and ability to simultaneously act as a strong electron withdrawing moiety, as well as a stable anchoring group in dye-sensitized solar cells (DSSCs).[1] Our previous work on the synthesis and characterization of D-π-A chromophores in which the donor part (D) is represented by a π-excessive five-membered heteroaromatic system (pyrrole or thiophene) functionalized by electron donor groups and the acceptor part (A) is a strong electron acceptor group (“classical” or an electron-deficient heterocycle) has shown that they exhibit excellent solvatochromic, photochromic, emissive properties, good photovoltaic efficiencies, exceptional thermal stabilities and good to excellent NLO responses.[2] In this work, we report the synthesis of new D-π-A chromophores functionalized with cyanoacetic acid as acceptor group, linked to the thienylpyrrole heterocyclic system, which plays the dual role of π-bridge and auxiliary donor group. Thienylpyrrolyl-cyanoacetic acid derivatives were obtained in excellent yields through a simple Knoevenagel condensation of the corresponding precursor aldehydes with cyanoacetic acid in acetonitrile at reflux, using piperidine as catalyst, and the optical and solvatochromic properties of the novel push-pull systems were evaluated. | por |
dc.description.sponsorship | The NMR spectrometer Bruker Avance III 400 is part of the National NMR Network, and was purchased with funds from POCI2010 (FEDER) and FCT. | por |
dc.description.sponsorship | Thanks are due to Fundação para a Ciência e Tecnologia (Portugal) for financial support through project PEst-C/QUI/UI0686/2011 (F-COMP-01-0124-FEDER-022716), FEDER-COMPETE and a post-doctoral grant to R.M.F. Batista (SFRH/BPD/79333/2011). The NMR spectrometer Bruker Avance III 400 is part of the National NMR Network, and was purchased with funds from POCI2010 (FEDER) and FCT | por |
dc.language.iso | eng | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F79333%2F2011/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6820 - DCRRNI ID/PEst-C%2FQUI%2FUI0686%2F2011/PT | - |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Thiophene | por |
dc.subject | Pyrrole | por |
dc.subject | Thienylpyrroles | por |
dc.subject | Cyanoacetic acids | por |
dc.subject | Synthesis | por |
dc.subject | UV-visible spectroscopy | por |
dc.subject | Solvatochromism | por |
dc.subject | Fluorescence | por |
dc.subject | Push-pull pi conjugated heterocyclic system | por |
dc.subject | Knoevenagel condensation | por |
dc.subject | Heterocyclid aldehydes | por |
dc.title | New thienylpyrrolyl-cyanoacetic acid derivatives: synthesis and evaluation of the optical and solvatochromic properties | por |
dc.type | conferenceAbstract | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://sciforum.net/conference/176/paper/4772 | por |
oaire.citationConferenceDate | 01 - 30 Nov. 2017 | por |
sdum.event.title | The 21st International Electronic Conference on Synthetic Organic Chemistry (ECSOC 21) | por |
sdum.event.type | conference | por |
oaire.citationConferencePlace | http://sciforum.net/conference/ecsoc-21 | por |
dc.identifier.doi | 10.3390/ecsoc-21-04772. | por |
rcaap.embargofct | Pretende-se uma maior extensão de embargo para obter o tempo necessário à publicação do trabalho na forma de artigo científico | por |
dc.subject.fos | Ciências Naturais::Ciências Químicas | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
sdum.conferencePublication | The 21st International Electronic Conference on Synthetic Organic Chemistry (ECSOC 21) | por |
Aparece nas coleções: | CDQuim - Comunicações e Proceedings |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Abstract-ECSOC 2017 doi 10.3390ecsoc-21-04772.pdf | Abstract-ECSOC 2017 - doi:10.3390/ecsoc-21-04772 | 102,59 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons