QQ客服 官方微博 反馈留言

	Hydrogen Bonding Interactions in Three 2-Mercaptoethanol Systems: An Excess Infrared Spectroscopic Study
	Wang, Nan-Nan ; Li, Qing-Zhong ; Yu, Zhi-Wu
	2010-10-12 ; 2010-10-12
关键词	Selective molecular interaction Hydrogen bond Excess spectroscopy 2-Mercaptoethanol Dimethylsulfoxide Acetone 2-DIMENSIONAL CORRELATION SPECTROSCOPY SELECTIVE MOLECULAR-INTERACTIONS TEMPERATURE-DEPENDENT CHANGES REFRACTIVE-INDEX DEVIATIONS ATTENUATED TOTAL-REFLECTION WEAK INTERACTION CHANGES CELLULOSE I-BETA CARBON-TETRACHLORIDE METHANOL CLUSTERS LIQUID METHANOL Instruments & Instrumentation Spectroscopy
中文摘要	The hydrogen bonding properties of a representative molecule, 2-mercaptoethanol (ME), of which two functional groups OH and SH are believed to interact competitively or selectively with proton-accepting molecules, have been studied. Three binary systems, namely ME-CCl4, ME-dimethyl sulfoxide (DMSO), and ME-acetone, were investigated with excess infrared absorption spectroscopy. It is found that when DMSO or acetone is added into ME, they preferentially form hydrogen bonds with OH, and the hydrogen bonds in the ME-DMSO system are stronger than those in the ME-acetone system. When CCl4 is added into ME, the weak hydrogen bonds involving the SH group are broken preferentially with increasing CCl4 concentration. The dissociation process of ME in the inert diluent CCl4 over the entire concentration range has been discussed in detail. In the very low concentration range of CCl4, the highly hydrogen bonded ME multimers mainly break into medium-sized aggregates. The amount of the trimers and dimers first increases and then, at x(CCl4) = 0.77, begins to decrease. These results suggest that excess infrared spectroscopy can provide detailed molecular pictures in liquid solutions containing complex hydrogen bonding interactions. It can also help to locate individual peak positions in the deconvolution of overlapped absorption bands.
语种	英语 ; 英语
出版者	SOC APPLIED SPECTROSCOPY ; FREDERICK ; 201B BROADWAY ST, FREDERICK, MD 21701 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80891]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Nan-Nan,Li, Qing-Zhong,Yu, Zhi-Wu. Hydrogen Bonding Interactions in Three 2-Mercaptoethanol Systems: An Excess Infrared Spectroscopic Study[J],2010, 2010.
APA	Wang, Nan-Nan,Li, Qing-Zhong,&Yu, Zhi-Wu.(2010).Hydrogen Bonding Interactions in Three 2-Mercaptoethanol Systems: An Excess Infrared Spectroscopic Study..
MLA	Wang, Nan-Nan,et al."Hydrogen Bonding Interactions in Three 2-Mercaptoethanol Systems: An Excess Infrared Spectroscopic Study".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。