水对室温离子液体表面阳离子取向影响的振动和频发生光谱学研究

2008/05/06   下载量： 90 次

方案摘要

方案下载
应用领域 石油/化工
检测样本 环境水（除海水）
检测项目
参考标准 暂无

Sum frequency generation vibrational spectroscopy was used to determine the orientation of the cations in a room-temperature ionic liquid at the air-liquid interface. The ionic liquid that was studied was 1-butyl-3- methylimidazolium bis-trifluoromethylsulfonimide, [BMIM]+[imide]-. The orientation of the cation, [BMIM]+, was studied as a function of water pressure in the vapor over the range of 10-5 to 200 Torr. At water pressures below 10-4 Torr, the imidazolium ring was oriented parallel to the surface plane. On increasing the water pressure to greater than 10-4 Torr, the imidazolium ring tipped up from the surface with an angle along the surface normal of 40-55°. No water signal was observed in the spectra obtained at the water pressures studied here.

方案下载
配置单
上一篇 在一个双稳湍流涡旋火焰中，对间歇性动态的时间-频率定位
下一篇 界面处的表面活性剂动力学

文献贡献者

北京欧兰科技发展有限公司
金牌会员 丨 第17年
查看全部资料
推荐方案
更多

相关产品

当前位置： 仪器信息网 欧兰科技 方案 水对室温离子液体表面阳离子取向影响的振动和频发生光谱学研究

关注

拨打电话

留言咨询