Physico-chemical studies of sodium tetraphenylborate and tetrabutylammonium tetraphenylborate in pure nitrobenzene and nitromethane and their binaries probed by conductometry, refractometry and FT-IR spectroscopy

被引：17
作者：
Dewan, Rajani [1 ]
Roy, Mahendra Nath [1 ]
机构：
[1] Univ N Bengal, Dept Chem, Darjeeling 734013, India
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2012年 / 54卷
关键词：
Ion-solvent interaction; Solvent-solvent interaction; Limiting molar conductance; Association constant; Walden's product; ION-SOLVENT INTERACTIONS; TETRAALKYLAMMONIUM HALIDES; CONDUCTANCE MEASUREMENTS; ELECTRICAL CONDUCTANCES; EXCESS VOLUMES; MOLAR VOLUMES; 298.15; K; MIXTURES; ACETONITRILE; METHANOL;
D O I：
10.1016/j.jct.2012.03.002
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Precise measurements on electrical conductances of sodium tetraphenyl borate (NaPh4B) and tetrabutyl ammonium tetraphenyl borate (Bu4NPh4B) in different mass fraction (0.00 to 1.00) of nitromethane (CH3NO2) in nitrobenzene (PhNO2) at 298.15 K have been performed. Limiting molar conductances (Lambda(0)), association constants (K-A) and co-sphere diameter (R) for ion-pair formation in the mixed solvent systems have been evaluated using the Fuoss conductance-concentration equation. The FT-IR spectra for the solvents as well as the solute in solvent have also been studied. The results show more association of the ions in PhNO2 than CH3NO2 and results have been interpreted in terms of ion-solvent and solvent-solvent interaction. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：28 / 34
页数：7
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