The deep eutectic solvent glyceline formed by choline chloride and glycerol in 1:2 molar ratio is much less viscous compared to glycerol, which facilitates its use in many applications where high viscosity is undesirable. Despite the large difference in viscosity, we have found that the structural network of glyceline is completely defined by its glycerol constituent, which exhibits complex microscopic dynamic behavior, as expected from a highly correlated hydrogen-bonding network. Choline ions occupy interstitial voids in the glycerol network and show little structural or dynamic correlations with glycerol molecules. Despite the known higher long-range diffusivity of the smaller glycerol species in glyceline, in applications where localized dynamics is essential (e.g., in microporous media), the local transport and dynamic properties must be dominated by the relatively loosely bound choline ions.

中文翻译：

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甘油氢键网络主导着深共晶溶剂的结构和集体动力学

与甘油相比，氯化胆碱和甘油以1：2的摩尔比形成的深共熔溶剂甘油的粘性要低得多，这有助于在许多不希望有高粘度的应用中使用它。尽管粘度差异很大，但我们已经发现，甘油的结构网络完全由其甘油成分定义，甘油成分表现出复杂的微观动态行为，正如高度相关的氢键网络所预期的那样。胆碱离子占据甘油网络中的间隙空隙，并且与甘油分子几乎没有结构或动态相关性。尽管已知较小的甘油在甘油中具有较高的远距离扩散性，但在需要局部动力学的应用中（例如，在微孔介质中），