Glyme-lithium salt phase behavior

Glyme-lithium salt phase behavior
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DOI:
10.1021/jp061516t
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发表时间:
2006-07-06
影响因子:
3.3
通讯作者:
Henderson, Wesley A.
Henderson, Wesley A.
中科院分区:
化学3区
文献类型:
--
作者:
Henderson, Wesley A.

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本文报道了含简单锂盐的甘醇二甲醚混合物的相图。所研究的甘醇二甲醚包括单甘醇二甲醚(DME)、二甘醇二甲醚、三甘醇二甲醚和四甘醇二甲醚。锂盐包括LiBETI、LiAsF6、LiI、LiClO4、LiBF4、LiCF3SO3、LiBr、LiNO3和LiCF3CO2。相图清楚地说明了溶剂化物的形成和热物理性质如何由盐的离子缔合强度(即,阴离子的性质)和溶剂化分子的链长。这些信息为有机金属试剂和电池电解质中常见的溶剂化物形成和离子相互作用提供了关键的预测能力。
Phase diagrams are reported for glyme mixtures with simple lithium salts. The glymes studied include monoglyme (DME), diglyme, triglyme, and tetraglyme. The lithium salts include LiBETI, LiAsF6, LiI, LiClO4, LiBF4, LiCF3SO3, LiBr, LiNO3, and LiCF3CO2. The phase diagrams clearly illustrate how solvate formation and thermophysical properties are dictated by the ionic association strength of the salt (i.e., the properties of the anions) and chain length of the solvating molecules. This information provides critical predictive capabilities for solvate formation and ionic interactions common in organometallic reagents and battery electrolytes.