Electrochemical recognition of alkali metal ions at the micro-water   1,2-dichloroethane interface using a calix[4]arene derivative

doi:10.1016/S0022-0728(03)00268-7

CORC > 北京大学 > 化学与分子工程学院

	Electrochemical recognition of alkali metal ions at the micro-water 1,2-dichloroethane interface using a calix[4]arene derivative
	Zhan, DP ; Xiao, YJ ; Yuan, Y ; He, YB ; Wu, BL ; Shao, YH
刊名	journal of electroanalytical chemistry
	2003
关键词	calixarene ion recognition facilitated ion transfer micro- and nano-ITIES kinetic parameters SODIUM-SELECTIVE ELECTRODES LIQUID-LIQUID INTERFACE COMPLEX-FORMATION POTASSIUM-ION SOLID-STATE MEMBRANE VOLTAMMETRY DIBENZO-18-CROWN-6 COORDINATION ENERGIES
DOI	10.1016/S0022-0728(03)00268-7
英文摘要	In this paper, a calix[4]arene derivative, 5,11,17,23-butyl-25,26,27,28-tetra-(ethanoxycarbonyl)-methoxy-calix[4]arene (L), is investigated as a host to recognize alkali metal ions (Li+, Na+, K+, Rb+ and Cs+) at the interface between two immiscible electrolyte solutions (ITIES). Well-defined cyclic voltammograms are obtained at the micro- and nano-water \ 1,2-dichloroethane (W \ DCE) interfaces supported at micro- and nano-pipets. The diffusion coefficient of this ionophore in the DCE phase is (3.8 +/- 0.4) x 10(-6) cm(2) s(-1). When the ion transfers across the interface, a 1:1 (metal:ionophore) complex is formed at the interface except for Cs+ ion. For the case of Cs+, a 1:2 (metal: ionophore) complex is verified from its special electrochemical response to the variation of [L] in the organic phase. The logarithms of the association constants of the LiL+, NaL+, KL+ and RbL+ complexes in the DCE phase (log beta(1)(degrees)), are calculated to be 11.6, 13.0, 11.3 and 9.2, respectively, and the logarithm of the cumulative association constant of CSL2+ (log beta(2)(degrees)) is found to be 7.9. The rate constants of these facilitated ion transfer processes are obtained using nanopipet voltammetry. The large association constants, the rapid interfacial reaction rates and the 'broad spectrum' recognition of metal ions suggest that this ionophore might have many potential applications in ion recognition and the fabrication of electrochemical sensors. (C) 2003 Elsevier B.V. All rights reserved.; Chemistry, Analytical; Electrochemistry; SCI(E); EI; 21; ARTICLE; SUPPL.; 43-48; 553
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/256151]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhan, DP,Xiao, YJ,Yuan, Y,et al. Electrochemical recognition of alkali metal ions at the micro-water 1,2-dichloroethane interface using a calix[4]arene derivative[J]. journal of electroanalytical chemistry,2003.
APA	Zhan, DP,Xiao, YJ,Yuan, Y,He, YB,Wu, BL,&Shao, YH.(2003).Electrochemical recognition of alkali metal ions at the micro-water 1,2-dichloroethane interface using a calix[4]arene derivative.journal of electroanalytical chemistry.
MLA	Zhan, DP,et al."Electrochemical recognition of alkali metal ions at the micro-water 1,2-dichloroethane interface using a calix[4]arene derivative".journal of electroanalytical chemistry (2003).