Thermodynamic study for dicyclohexano-24-crown-8 complexes with K+, Rb+, Cs+ and Tl+ ions in binary acetonitrile–nitromethane mixtures by conductometric method
作者： Mohammad Kazem Rofouei , Mehdi Taghdiri , Mojtaba Shamsipur
DOI: 10.1007/S10847-008-9462-0
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摘要: The complexation reactions between dicyclohexano-24-crown-8 (DC24C8) and K+, Rb+, Cs+ Tl+ ions were studied conductometrically in the different acetonitrile-nitromethane mixtures at various temperatures. formation constants of resulting 1:1 complexes calculated from computer fitting molar conductance-mole ratio data At 25 °C all solvent used, stability varied order > K+ Rb+ ~ Cs+. enthalpy entropy changes evaluated by temperature dependence constants. It was found that increased with increasing nitromethane mixture.
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