Studies of Physicochemical and Thermodynamic Properties of the Paramagnetic 1-Alkyl-3-methylimidazolium Ionic Liquids (EMIm)2[Co(NCS)4] and (BMIm)2[Co(NCS)4

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• 作者：Monika Geppert-Rybczyska ; Jochen K. Lehmann ; Tim Peppel ; Martin Kckerling ; Andreas Heintz
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2010
• 出版时间：December 9, 2010
• 年：2010
• 卷：55
• 期：12
• 页码：5534-5538
• 全文大小：162K
• 年卷期：v.55,no.12(December 9, 2010)
• ISSN：1520-5134

文摘

This paper describes selected thermophysical properties of the newly obtained paramagnetic inky, opaque ionic liquid, 1-butyl-3-methylimidazolium tetraisothiocyanato-cobaltate(II) ((BMIm)ub>2ub>[Co(NCS)ub>4ub>]). Some properties of the homologous ionic liquid (IL), 1-ethyl-3-methylimidazolium tetraisothiocyanato-cobaltate(II) ((EMIm)ub>2ub>[Co(NCS)ub>4ub>]), have been presented earlier and are discussed here together with those for (BMIm)ub>2ub>[(Co(NCS)ub>4ub>]. On the basis of experimental densities, kinematic viscosities, conductivities, and surface tensions, some additional parameters have been determined, i.e., expansivity coefficients and surface thermodynamic properties. The influence of structural variation in the 1-alkyl-3-methylimidazolium cation is also discussed.