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http://hdl.handle.net/10773/19344
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Moura, Nuno M. M. | pt |
dc.contributor.author | Nunez, Cristina | pt |
dc.contributor.author | Santos, Sergio M. | pt |
dc.contributor.author | Faustino, M. Amparo F. | pt |
dc.contributor.author | Cavaleiro, Jose A. S. | pt |
dc.contributor.author | Neves, M. Graca P. M. S. | pt |
dc.contributor.author | Capelo, Jose Luis | pt |
dc.contributor.author | Lodeiro, Carlos | pt |
dc.date.accessioned | 2017-12-07T19:09:31Z | - |
dc.date.issued | 2014 | pt |
dc.identifier.issn | 0020-1669 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/19344 | - |
dc.description.abstract | New pyrazole porphyrin conjugates were successfully prepared from a reaction of beta-porphyrin chalcone derivatives with phenylhydrazine in acetic acid followed by an oxidative step. This fast and efficient synthetic approach provided the expected compounds in yields up to 82%. The sensing ability of the new porphyrin-pyrazole derivatives to detect the metal ions Ag+, Na+, K+, Mg2+, Ca2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, Pb2+, and Cr3+ was studied by spectrophotometric and spectrofluorimetric titrations. In the presence of Zn2+, the conjugates exhibit changes in the emission spectra that are desired for a ratiometric-type fluoroionophoric detection probe. The studies were extended to gas phase, where the pyrazole porphyrin conjugates show ability to sense metal ions with high selectivity toward Cu2+ and Ag+, and in poly(methyl methacrylate) doped films with promising results for Zn2+ detection. | pt |
dc.language.iso | eng | pt |
dc.publisher | AMER CHEMICAL SOC | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132972/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F84216%2F2012/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F64752%2F2009/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | ION | pt |
dc.subject | CHEMOSENSORS | pt |
dc.subject | SENSOR | pt |
dc.subject | MERCURY | pt |
dc.subject | CU2+ | pt |
dc.subject | DERIVATIVES | pt |
dc.subject | LUMINESCENCE | pt |
dc.subject | RECOGNITION | pt |
dc.subject | COMPLEXES | pt |
dc.subject | PLATFORM | pt |
dc.title | Synthesis, Spectroscopy Studies, and Theoretical Calculations of New Fluorescent Probes Based on Pyrazole Containing Porphyrins for Zn(II), Cd(II), and Hg(II) Optical Detection | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 6149 | pt |
degois.publication.issue | 12 | pt |
degois.publication.lastPage | 6158 | pt |
degois.publication.title | INORGANIC CHEMISTRY | pt |
degois.publication.volume | 53 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1021/ic500634y | pt |
dc.identifier.doi | 10.1021/ic500634y | pt |
Appears in Collections: | CICECO - Artigos |
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