Temperature effects on the viscosity and the wavelength-dependent refractive index of imidazolium-based ionic liquids with a phosphorus-containing anion
作者:C. Chiappe、P. Margari、A. Mezzetta、C. S. Pomelli、S. Koutsoumpos、M. Papamichael、P. Giannios、K. Moutzouris
DOI:10.1039/c6cp08910k
日期:——
A systematic study on the viscosity and refractive index of 1-alkyl-3-methylimidazolium based ionic liquids (alkyl = methyl, butyl and hexyl) combined with three phosphorus containing anions, i.e. dimethylphosphate, methyl methylphosphonate and methylphosphonate, is reported. Experimental measurements account for temperature effects, while the refractive index is determined at multiple wavelengths
对基于1-烷基-3-甲基咪唑鎓的离子液体(烷基=甲基,丁基和己基)与三种含磷阴离子(即磷酸二甲酯,甲基膦酸甲酯和甲基膦酸酯)结合的粘度和折射率进行了系统的研究。实验测量说明了温度的影响,而折射率是在可见光和近红外区域中的多个波长下确定的。尽管这些阴离子在结构上相似,但可以确定所得IL的物理性质存在显着差异,并且随着阳离子烷基链长度的增加,粘度增加(折射率降低)的趋势明显。从头算 进行理论计算以支持和合理化所观察到的行为。