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Characterization of Crystalline and Solution Phases of Diglyme-LiSbF_6

机译:Diglyme-LiSbF_6的结晶特征和固溶相

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摘要

Solutions of lithium hexafluroantimonate,LiSbF_6,dissolved in diethylene glycol dimethyl ether (diglyme),CH_3O(CH_2CH_2O)_2CH_3,are used as a model for high molecular weight poly(ethylene oxide),PEO,complexed with LiSbF_6.During this work,a 2:1 diglyme:LiSbF_6 crystal was discovered and its structure solved by single-crystal X-ray diffraction techniques.The compound crystallizes in the orthorhombic Pccn space group with Z = 4.In this crystal,the lithium ion is 6-fold coordinated by two diglyme molecules,while the anions are isolated.Raman and FTIR vibrational spectroscopy were used to study both the crystal and a series of diglyme-LiSbF_6 solutions.Similarities in modes sensitive to molecular conformation show that the local conformational structure in the crystal also occurs in diglyme-LiSbF_6 solutions.
机译:六氟锑酸锂LiSbF_6溶于二甘醇二甲醚(二甘醇二甲醚)CH_3O(CH_2CH_2O)_2CH_3的溶液用作高分子量聚环氧乙烷PEO与LiSbF_6配合的模型。在此过程中,a 2发现:1二聚体:LiSbF_6晶体,并通过单晶X射线衍射技术解析其结构。该化合物在Z = 4的正交Pccn空间群中结晶。在该晶体中,锂离子是2配位的6倍用拉曼光谱和FTIR振动光谱法研究了晶体和一系列diglyme-LiSbF_6溶液-LiSbF_6解决方案。

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