Solvation structure of Li+ in highly concentrated LiTFSA-DMSO solutions studied by means of neutron diffraction with 6Li/7Li isotopic substitution method

被引：0

作者：

Kameda, Yasuo ^{[1
]}

Amo, Yuko ^{[1
]}

Usuki, Takeshi ^{[1
]}

Umebayashi, Yasuhiro ^{[2
]}

Watanabe, Hikari ^{[3
]}

Ueno, Kazuhide ^{[4
]}

Ikeda, Kazutaka ^{[5
]}

Honda, Takashi ^{[6
]}

Otomo, Toshiya ^{[6
]}

机构：

[1] Yamagata Univ, Fac Sci, 1-4-12 Kojirakawa Machi, Yamagata, Yamagata 9908560, Japan

[2] Niigata Univ, Grad Sch Sci & Technol, Nishi Ku, Niigata, Niigata 9502181, Japan

[3] Tokyo Univ Sci, Dept Pure & Appl Chem, Fac Sci & Technol, 2641 Yamazaki, Noda, Chiba 2788510, Japan

[4] Yokohama Natl Univ, Dept Chem & Life Sci, 79-5 Tokiwadai,Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan

[5] Comprehens Res Org Sci & Soc CROSS, Neutron Ind Applicat Promot Ctr, Naka, Ibaraki 3191106, Japan

[6] KEK, Inst Mat Struct Sci, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2025年 / 98卷 / 03期

关键词：

Li-6/Li-7 isotopic substitution; Li+ solvation; neutron diffraction; SCIENCE EXPERIMENTAL FACILITY; DIMETHYL-SULFOXIDE; AQUEOUS-SOLUTIONS; OXYGEN REDUCTION; LITHIUM IODIDE; SCATTERING; ELECTROLYTES;

D O I：

10.1093/bulcsj/uoaf020

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Time-of-flight neutron diffraction measurements for Li-6/Li-7 isotopically substituted 20 mol% *LiTFSA-DMSO-d(6) solutions have been carried out to investigate the solvation structure of Li+ in a highly concentrated DMSO solution. Structural information on the nearest-neighbor Li+& mldr;DMSO interaction has been determined by using the least squares fitting procedure of the observed difference interference term, Delta(Li)(Q). It has been revealed that 4.1(2) DMSO molecules are involved in the first solvation shell of Li+ in the present solutions. The nearest-neighbor Li+& mldr;ODMSO distance and bond angle, angle Li+& mldr;ODMSO = S-DMSO, have been determined to be 1.96(3) & Aring; and 138(15)degrees, respectively.

引用

页数：7

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