Kinetics, thermodynamics, and modeling of complex formation between calix[4]biscrowns and cesium.
作者： Alexandre Korovitch , Jean-Baptiste Mulon , Vincent Souchon , Claude Lion , Bernard Valeur
DOI: 10.1021/JP9052506
关键词:
摘要: Complex formations between calix[4]arene-bis(crown-6-ether) calix-COU2 (A1) and the tetrasulfonated species calix-COUSULF (A2) with Cs+ are investigated in water ethanol, 9:1 (M1) 1:9 (M2) H2O/EtOH v:v mixtures, by chemical relaxation molecular modeling. In ethanol M2, two included A1 kinetic steps, whereas complex formation M1 becomes controlled a slow first-order process, which is accompanied very fast inclusions, second-order rate constant: k′1 = (3.4 ± 0.8) × 107 M−1 s−1. M1, A2 forms 1:1 1:2 cesium complexes single step, steps. The thermodynamic constants involved reported. They show that increase ethanol-to-water ratio, e.g., A2, constant for first water: k1A2water (9.7 0.3) 104 s−1 M2: k1A2M2 (6.3 0.4) 109 affinities of both Cs...
acs.org
sci-hub.se 参考文章(38)
K. M. Kemner, D. B. Hunter, W. T. Elam, P. M. Bertsch, XAFS Studies of Solution-Phase Complexes of Cesium with Dibenzo-18-crown-6 Ethers The Journal of Physical Chemistry. ,vol. 100, pp. 11698- 11703 ,(1996) , 10.1021/JP9604608
Ebony D. Roper, Vladimir S. Talanov, Maryna G. Gorbunova, Richard A. Bartsch, Galina G. Talanova, Optical determination of thallium(I) and cesium(I) with a fluorogenic calix[4]arenebis(crown-6 ether) containing one pendent dansyl group. Analytical Chemistry. ,vol. 79, pp. 1983- 1989 ,(2007) , 10.1021/AC061387C
J. Ramón Blas, Jose Maria López-Bes, Manuel Márquez, Jonathan L. Sessler, F. Javier Luque, Modesto Orozco, Exploring the Dynamics of Calix[4]pyrrole: Effect of Solvent and Fluorine Substitution Chemistry: A European Journal. ,vol. 13, pp. 1108- 1116 ,(2007) , 10.1002/CHEM.200600757
Raymond Brouillard, How much may the equilibrium be shifted in a chemical relaxation experiment? Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases. ,vol. 76, pp. 583- 587 ,(1980) , 10.1039/F19807600583
Xue Kui Ji, David StC. Black, Stephen B. Colbran, Gary D. Willett, Peter Turner, Metal-ion chemistry of tetra(meso-4-phenoxy-2-picolyl)-calix[4]pyrrole: An extendable super-cavitand tetrapodal ligand Inorganic Chemistry Communications. ,vol. 9, pp. 469- 472 ,(2006) , 10.1016/J.INOCHE.2006.01.007
Cindy Chen, William Wallace, Edward Eyring, Sergio Petrucci, Solvent effect on the kinetics of complexation of alkali ions with the macrocyclic ligand 18-crown-6 The Journal of Physical Chemistry. ,vol. 88, pp. 2541- 2547 ,(1984) , 10.1021/J150656A022
Isabelle Leray, Zouhair Asfari, Jacques Vicens, Bernard Valeur, Synthesis and binding properties of calix[4]biscrown-based fluorescent molecular sensors for caesium or potassium ions Journal of The Chemical Society-perkin Transactions 1. pp. 1429- 1434 ,(2002) , 10.1039/B203633A
Miryana Hémadi, Nguyêt-Thanh Ha-Duong, Jean-Michel El Hage Chahine, The mechanism of iron release from the transferrin-receptor 1 adduct. Journal of Molecular Biology. ,vol. 358, pp. 1125- 1136 ,(2006) , 10.1016/J.JMB.2006.02.055
John S. Lomas, Direct NMR measurement of rotation rates: solvent effects on rotation barriers Journal of Physical Organic Chemistry. ,vol. 20, pp. 221- 228 ,(2007) , 10.1002/POC.1173
Marcel. Maeder, Andreas D. Zuberbuehler, Nonlinear least-squares fitting of multivariate absorption data Analytical Chemistry. ,vol. 62, pp. 2220- 2224 ,(1990) , 10.1021/AC00219A013