测定了咪唑类离子液体[Cn mim][Br](n=4,6,8,10)在CDCl3中的1 H NMR和13 C NMR化学位移.结果表明,所研究离子液体在CDCl3中发生了聚集,离子液体阳离子的侧链长度、阴离子的类型均有不同程度的影响.
1H and 13C NMR chemical shifts were measured for the mixtures of (n=4,6,8,10) in CDCl3.The results indicated that all ionic liquids aggregated in CDCl3,which was affected by the length of alkyl chain on the cations of the ionic liquids and the type of the anions.