A mercuric ensemble based on a cycloruthenated complex as a visual probe for iodide in aqueous solution.
Spectrochim Acta A Mol Biomol Spectrosc
; 152: 468-74, 2016 Jan 05.
Article
em En
| MEDLINE
| ID: mdl-26253438
ABSTRACT
A new water-soluble cycloruthenated complex Ru(bthiq)(dcbpy)2(+) (1, Hbthiq=1-(2-benzo[b]thiophenyl)isoquinoline, dcbpy=4,4'-dicarboxylate-2,2'-bipyridine) was designed and synthesized to form its mercuric ensemble (1-Hg(2+)) to achieve visual detection of iodide anions. The binding constant of 1-Hg(2+) is calculated to be 2.40×10(4)M(-1), which is lower than that of HgI2. Therefore, the addition of I(-) to the aqueous solution of 1-Hg(2+)lead to significant color changes from yellow to deep-red by the release of 1. The results showed that iodide anions could be easily detected by the naked eyes. The detection limit of iodide anion is calculated as 0.77µM. In addition, an easily-prepared test strip of 1-Hg(2+) was obtained successfully to detect iodide anions.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Rutênio
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Água
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Colorimetria
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Complexos de Coordenação
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Iodetos
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Mercúrio
Idioma:
En
Revista:
Spectrochim Acta A Mol Biomol Spectrosc
Assunto da revista:
BIOLOGIA MOLECULAR
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
China