A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
A high selective anion colorimetric sensor based on salicylaldehyde for fluoride in aqueous media
Tekijät: Li JW, Lin H, Cai ZS, Lin HK
Kustantaja: PERGAMON-ELSEVIER SCIENCE LTD
Julkaisuvuosi: 2009
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Tietokannassa oleva lehden nimi: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Lehden akronyymi: SPECTROCHIM ACTA A
Vuosikerta: 72
Numero: 5
Aloitussivu: 1062
Lopetussivu: 1065
Sivujen määrä: 4
ISSN: 1386-1425
DOI: https://doi.org/10.1016/j.saa.2008.12.045
A new and simple salicylaldehyde-based sensor 1 designed for fluoride sensing has been investigated in DMSO and even in the 9/1 DMSO/H(2)O (v/v) Mixtures. The affinity constants of receptor 1 for anionic species in the 9/1 DMSO/H(2)O (v/v) reveal that it is sensitive to F. Also, the color changes induced by anions can provide a way of detection by 'naked-eye'. These result can be substantiated by the spectrum changes upon the addition of 25 equiv. anions to 1 in the 9/1 DMSO/H(2)O solution. The further insights to the nature of interactions between the sensor 1and F were investigated by (1)H NMR titration experiments in 9/1 DMSO-d(6)/H(2)O (v/v). In addition, the proposed binding mode between 1 and F(-) was suggested. (C) 2009 Elsevier B.V. All rights reserved.
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