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Recognition of transition metals by benzimidazoles with an optical response
Comunicação eletrónica d003 apresentada na 19th Int. Electron. Conf. Synth. Org. Chem., 1–30 Novembro 2015. Sciforum Electronic Conference Series, Vol. 19 ; It is reported the interaction studies of a set of benzimidazoles bearing at position 2 different five-membered heterocycles (thiophene, pyrrole and furan) with biologically important cations, through spectrophotometric and spectrofluorimetric titrations. ; The photophysical properties of a set of benzimidazoles bearing thiophene, pyrrole and furan at position 2 were evaluated by UV-vis absorption and fluorescence spectroscopy in acetonitrile. Interaction studies with biologically and analytically important transition metal cations, such as Cd2+, Cu2+, Fe2+, Fe3+, Hg2+ and Pd2+, were carried out through spectrophotometric and spectrofluorimetric titrations. It was found that benzomidazoles 1a-c show higher sensitivity and ability to interact with Fe3+ and Hg2+ in acetonitrile, and could be considered as potential fluorimetric chemosensors for these cations. ; Thanks are due to Fundação para a Ciência e Tecnologia (FCT-Portugal) and FEDERCOMPETE for financial support through Centro de Química [PEst-C/QUI/UI0686/2013 (FCOMP-01-0124-FEDER-037302] and a PhD grant to C.I.C. Esteves (SFRH/BD/68360/2010). ; info:eu-repo/semantics/publishedVersion
Recognition of transition metals by benzimidazoles with an optical response
Comunicação eletrónica d003 apresentada na 19th Int. Electron. Conf. Synth. Org. Chem., 1–30 Novembro 2015. Sciforum Electronic Conference Series, Vol. 19 ; It is reported the interaction studies of a set of benzimidazoles bearing at position 2 different five-membered heterocycles (thiophene, pyrrole and furan) with biologically important cations, through spectrophotometric and spectrofluorimetric titrations. ; The photophysical properties of a set of benzimidazoles bearing thiophene, pyrrole and furan at position 2 were evaluated by UV-vis absorption and fluorescence spectroscopy in acetonitrile. Interaction studies with biologically and analytically important transition metal cations, such as Cd2+, Cu2+, Fe2+, Fe3+, Hg2+ and Pd2+, were carried out through spectrophotometric and spectrofluorimetric titrations. It was found that benzomidazoles 1a-c show higher sensitivity and ability to interact with Fe3+ and Hg2+ in acetonitrile, and could be considered as potential fluorimetric chemosensors for these cations. ; Thanks are due to Fundação para a Ciência e Tecnologia (FCT-Portugal) and FEDERCOMPETE for financial support through Centro de Química [PEst-C/QUI/UI0686/2013 (FCOMP-01-0124-FEDER-037302] and a PhD grant to C.I.C. Esteves (SFRH/BD/68360/2010). ; info:eu-repo/semantics/publishedVersion
Recognition of transition metals by benzimidazoles with an optical response
Esteves, Cátia Isabel Canavezes (Autor:in) / Raposo, M. Manuela M. (Autor:in) / Costa, Susana P. G. (Autor:in)
01.11.2015
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
DDC:
690
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