The structure and hydrogen-bond properties of N-alkyl-N-methyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide and DMSO mixtures
文献类型：期刊论文
| 作者 | Zheng, Yan-Zhen4; Chen, Hong1; Zhou, Yu1; Geng, Deng5; He, Hong-Yan3; Wu, Li-Ming2,4 |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2020-12-28 |
| 卷号 | 22期号:48页码:28021-28031 |
| ISSN号 | 1463-9076 |
| DOI | 10.1039/d0cp03640d |
| 英文摘要 | Mixing ionic liquids (ILs) with molecular solvents can extend the practical applications of ILs and overcome the drawbacks of neat ILs. Knowledge on the structure and hydrogen-bond interaction properties of IL-molecular solvent mixtures is essential for chemical applications. In this work, the structure and hydrogen-bond features of N-alkyl-N-methyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide ([CnMPyr][Tf2N], n = 3, 4, 6 and 8) and DMSO mixtures were studied using Fourier transform infrared spectroscopy (FTIR) and density functional theory (DFT) calculations. Excess infrared absorption spectroscopy and two-dimensional correlation spectroscopy (2D-COS) were employed to extract structural information on the mixtures from the C-D systematic stretching vibrational (nu(s)(C-D)) region of the methyl groups in DMSO-d(6). It was found that the mixing process of [CnMPyr][Tf2N] and DMSO is non-ideal and interaction complexes form between [CnMPyr][Tf2N] and DMSO-d(6). They are ion cluster-DMSO-d(6) complexes and ion pair-DMSO-d(6) complexes. In the mixing processes, the species present in pure DMSO gradually decrease from DMSO dimer to DMSO monomer with an increase in ILs. Besides, the ion cluster-DMSO complexes gradually increase, while the ion pair-DMSO complexes decrease due to the strong electrostatic interaction between the cation and anion. In the ion cluster-DMSO complexes and ion pair-DMSO complexes, the ring hydrogen atoms of the methylene group directly attached to the nitrogen atom are the preferred interaction sites of the [CnMPyr](+) cations. All the hydrogen bonds in the identified complexes are closed-shell, electrostatically dominant and weak. |
| WOS关键词 | SELECTIVE MOLECULAR-INTERACTIONS ; TEMPERATURE IONIC LIQUIDS ; DIMETHYL-SULFOXIDE ; CELLULOSE DISSOLUTION ; BINARY-SYSTEMS ; WATER ; EXTRACTION ; SOLVATION ; TETRAFLUOROBORATE ; TRIFLUOROACETATE |
| 资助项目 | National Natural Science Foundation of China[21703035] ; Hong Kong Scholar Program[XJ2018022] ; National Science Fund for Excellent Young Scholars[21922813] ; Fujian Agriculture and Forestry University Foundation for excellent youth teachers[xjq201715] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000603167900009 |
| 资助机构 | National Natural Science Foundation of China ; Hong Kong Scholar Program ; National Science Fund for Excellent Young Scholars ; Fujian Agriculture and Forestry University Foundation for excellent youth teachers |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/43068]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | He, Hong-Yan |
| 作者单位 | 1.Qingdao Univ, Sch Chem & Chem Engn, Qingdao 266071, Peoples R China 2.Chinese Acad Agr Sci, Inst Apicultural Res, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, CAS Key Lab Green Proc & Engn,State Key Lab Multi, Beijing 100190, Peoples R China 4.Fujian Agr & Forestry Univ, Coll Anim Sci, Coll Bee Sci, Fuzhou 350002, Peoples R China 5.Tsinghua Univ, Dept Chem, Key Lab Bioorgan Phosphorous Chem & Chem Biol, Minist Educ, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yan-Zhen,Chen, Hong,Zhou, Yu,et al. The structure and hydrogen-bond properties of N-alkyl-N-methyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide and DMSO mixtures[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2020,22(48):28021-28031. |
| APA | Zheng, Yan-Zhen,Chen, Hong,Zhou, Yu,Geng, Deng,He, Hong-Yan,&Wu, Li-Ming.(2020).The structure and hydrogen-bond properties of N-alkyl-N-methyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide and DMSO mixtures.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,22(48),28021-28031. |
| MLA | Zheng, Yan-Zhen,et al."The structure and hydrogen-bond properties of N-alkyl-N-methyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide and DMSO mixtures".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 22.48(2020):28021-28031. |
入库方式： OAI收割
来源：过程工程研究所
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