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
authors Moura, NMM; Nunez, C; Santos, SM; Faustino, MAF; Cavaleiro, JAS; Neves, MGPMS; Capelo, JL; Lodeiro, C
nationality International
journal INORGANIC CHEMISTRY
keywords ION; CHEMOSENSORS; SENSOR; MERCURY; CU2+; DERIVATIVES; LUMINESCENCE; RECOGNITION; COMPLEXES; PLATFORM
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.
publisher AMER CHEMICAL SOC
issn 0020-1669
year published 2014
volume 53
issue 12
beginning page 6149
ending page 6158
digital object identifier (doi) 10.1021/ic500634y
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000337557800037
link 24892845
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 4.700
5 year journal impact factor 4.513
category normalized journal impact factor percentile 90.000
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg