- P-ISSN 1225-0163
- E-ISSN 2288-8985
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- P-ISSN1225-0163
- E-ISSN2288-8985
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Detection of ClO4- via A Hypersensitive Receptor：Unusual Electrostatic Equilibria between Host and Guest in Aqueous Media
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2002, v.15 no.1, pp.6-35
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(2002). Detection of ClO4- via A Hypersensitive Receptor：Unusual Electrostatic Equilibria between Host and Guest in Aqueous Media. Analytical Science and Technology, 15(1), 6-35.
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Abstract
useful receptor for the sensing of ClO4- species with remarkable selectivity has been developed. The hypersensitive interaction between a host and a guest has been investigated for the complex [Pd(Me4en)(Py2S)·2ClO4]4 (Me4en = N,N,N',N'-tetramethylethylenediamine; Py2S = 4,4' -dipyridyl sulfide). The pyridyl moiety of Py2S exhibits two sets of 1H resonances that are delicately dependent upon temperature, concentration, and media. The nonrigidity has been explained in terms of an electrostatic equilibrium between the tetrameric host and the ClO4- guest. The equilibrium is a useful method for the detection of ClO4- anion with remarkable selectivity via "a restricted guest within a big host" in aqueous solution.
- keywords
- perchlorate sensing, palladium complex, electrostatic interaction
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