中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Understanding the hydrogen bonds in ionic liquids and their roles in properties and reactions

文献类型:期刊论文

作者Dong, Kun1; Zhang, Suojiang1; Wang, Jianji2
刊名CHEMICAL COMMUNICATIONS
出版日期2016
卷号52期号:41页码:6744-6764
ISSN号1359-7345
英文摘要Ionic liquids (ILs) have many potential applications in the chemical industry. In order to understand ILs, their molecular details have been extensively investigated. Intuitively, electrostatic forces are solely important in ILs. However, experiments and calculations have provided strong evidence for the existence of H-bonds in ILs and their roles in the properties and applications of ILs. As a structure-directing force, H-bonds are responsible for ionic pairing, stacking and self-assembling. Their geometric structure, interaction energy and electronic configuration in the ion-pairs of imidazolium-based ILs and protic ionic liquids (PILs) show a great number of differences compared to conventional H-bonds. In particular, their cooperation with electrostatic, dispersion and pi interactions embodies the physical nature of H-bonds in ILs, which anomalously influences their properties, leading to a decrease in their melting points and viscosities and thus fluidizing them. Using ILs as catalysts and solvents, many reactions can be activated by the presence of H-bonds, which reduce the reaction barriers and stabilize the transition states. In the dissolution of lignocellulosic biomass by ILs, H-bonds exhibit a most important role in disrupting the H-bonding network of cellulose and controlling microscopic ordering into domains. In this article, a critical review is presented regarding the structural features of H-bonds in ILs and PILs, the correlation between H-bonds and the properties of ILs, and the roles of H-bonds in typical reactions.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]MOLECULAR-DYNAMICS SIMULATIONS ; FAR-INFRARED SPECTROSCOPY ; CATION-ANION INTERACTION ; X-RAY-DIFFRACTION ; DENSITY-FUNCTIONAL THEORY ; ROOM-TEMPERATURE ; ETHYLAMMONIUM NITRATE ; BIOMASS RECALCITRANCE ; ELECTRONIC-STRUCTURE ; INTERACTION ENERGIES
收录类别SCI
语种英语
WOS记录号WOS:000376089000001
源URL[http://ir.ipe.ac.cn/handle/122111/21085]  
专题过程工程研究所_多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Henan Normal Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Minist Educ,Key Lab Green Chem Media & React, Xinxiang 453007, Henan, Peoples R China
推荐引用方式
GB/T 7714
Dong, Kun,Zhang, Suojiang,Wang, Jianji. Understanding the hydrogen bonds in ionic liquids and their roles in properties and reactions[J]. CHEMICAL COMMUNICATIONS,2016,52(41):6744-6764.
APA Dong, Kun,Zhang, Suojiang,&Wang, Jianji.(2016).Understanding the hydrogen bonds in ionic liquids and their roles in properties and reactions.CHEMICAL COMMUNICATIONS,52(41),6744-6764.
MLA Dong, Kun,et al."Understanding the hydrogen bonds in ionic liquids and their roles in properties and reactions".CHEMICAL COMMUNICATIONS 52.41(2016):6744-6764.

入库方式: OAI收割

来源:过程工程研究所

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