THE COMPLEXATION OF 18-CROWN-6 WITH NACL IN DIOXANE WATER AND DETERMINATION OF EQUILIBRIUM-CONSTANTS WITH ION-SELECTIVE ELECTRODES

被引:11
作者
CAKIR, U [1 ]
ERK, C [1 ]
机构
[1] UNIV DICLE,FAC SCI,DEPT CHEM,DIYARBAKIR 28101,TURKEY
关键词
D O I
10.1016/0040-6031(91)80298-W
中图分类号
O414.1 [热力学];
学科分类号
摘要
The complexation of 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) with Na+ ions in dioxane-water was investigated with a sodium ion selective electrode and a glass electrode, and values of K(e) (equilibrium constant) were determined according to the analytical expression 1/K(e) [L0]n+m-1 = (1 - nP')n (1 - mP')m/P'. The [L0] is the concentration of a ligand L which is kept identical with the cation concentration, and P' = 1/[1 + P(1 - m)], where P is the mole fraction of the complexed species.
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页码:67 / 73
页数:7
相关论文
共 25 条
[1]  
CHRISTENSEN JJ, 1985, CHEM REV, V85, P27
[2]   PREORGANIZATION - FROM SOLVENTS TO SPHERANDS [J].
CRAM, DJ .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1986, 25 (12) :1039-1057
[5]   HOST-GUEST INTERACTION MECHANISMS WITH C-13 DIPOLE-DIPOLE RELAXATION-TIME MEASUREMENTS .5. EQUILIBRIUM-CONSTANTS OF POTASSIUM AND SODIUM ACETATES COMPLEXING WITH 18 - CROWN - 6 IN CH3OD [J].
ERK, C .
JOURNAL OF MOLECULAR LIQUIDS, 1989, 40 (02) :143-153
[6]   EFFECT OF EU(FOD)3 ON THE C-13 NMR-SPECTRA OF MACROCYCLIC ETHERS AND POLYOXA-LACTONES [J].
ERK, C .
FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1983, 316 (05) :477-481
[7]  
ERK C, 1990, IN PRESS THERMOCHIM
[8]  
ERK C, 1988, 9TH IUPAC PHYS ORG C
[9]  
ERK J, 1990, IN PRESS J MOL LIQUI
[10]   STABILITY CONSTANTS OF CYCLIC POLYETHER COMPLEXES WITH UNIVALENT CATIONS [J].
FRENSDORFF, HK .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1971, 93 (03) :600-+