文献类型：期刊文献

中文题名：室温离子液体[Bmim]PF_6的合成及其与乙腈体系的过量摩尔体积的研究

英文题名：Synthesis of room-temperature ionic liquid [Bmim]PF_6 and study on excess molar volumes of [Bmim]PF_6 with acetonitrile

作者：许映杰[1];沈剑锋[2];王奇伟[2];林会[1]

机构：[1]绍兴文理学院化学化工学院;[2]浙江震元制药有限公司

年份：2009

卷号：31

期号：8

起止页码：661

中文期刊名：化学试剂

外文期刊名：Chemical Reagents

收录：CSTPCD、、CSCD2011_2012、北大核心2008、北大核心、CSCD

语种：中文

中文关键词：咪唑;离子液体;密度;过量体积

外文关键词：imidazole; ionic liquid; density; excess molar volumes

中文摘要：合成了1-丁基-3-甲基六氟磷酸盐离子液体([Bmim]PF6),并用傅里叶红外光谱仪表征其结构。在25℃下,测定[Bmim]PF6-乙腈体系在全浓度范围内的过量摩尔体积(VE)。二元混合体系的VE实验测定值为负值,表明[Bmim]PF6与乙腈之间以弱化学作用占主导;并且当[Bmim]PF6的摩尔分数x1=0.25时,VE出现极值,表明此时两者相互作用最大。

外文摘要：A room temperature ionic liquid-1-butyl-3-methylimidazolium hexafluorophosphate（[Bmim]PF6）—— was prepared,and its structure was characterized and confirmed by IR spectrometry.The excess molar volumes（V^E）of binary liquid mixtures of [Bmim]PF6 with acetonitrile were determined in the whole range of composition using the Anton Paar DMA 602 digital densimeter at 25 ℃.Excess molar volumes of the binary liquid mixture were negative in value,which indicated that the interaction of binary liquid mixtures was dominated by weak chemical interaction.Excess molar volumes reached an extreme point,when the mole fraction of [Bmim]PF6 was 0.25,which indicated that the interaction of binary liquid mixtures was at its maximum.