Selectivity Behavior of a Robust Porous Organic Salt Based on the Pamoate Ion,Crystal Growth & Design

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Selectivity Behavior of a Robust Porous Organic Salt Based on the Pamoate Ion
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2017-12-22 00:00:00 , DOI: 10.1021/acs.cgd.7b01429
Helene Wahl ₁ , Delia A. Haynes ₁ , Tanya le Roex ₁

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The selectivity of a porous hydrogen-bonded framework, 1, toward various solvent mixtures has been investigated. Framework 1, which is the hydrate of 3,4-lutidinium pamoate, crystallizes as its THF solvate, 1·THF. Solvent exchange can take place either by exposing crystals of 1·THF to solvent vapors or by immersing the crystals in a solvent. Framework 1 shows preferential inclusion of particular solvents when exposed to mixed solvent vapors, or to mixed solvents in the liquid form. Analysis showed that solvents are included in the same ratios when exposed to mixed solvents in the liquid or vapor phase, despite the significant differences in mole ratios between the liquid and vapor phases due to the different vapor pressures of the solvents investigated. In some cases, when immersed in solvent mixtures containing acetonitrile or acetone, 1·THF recrystallizes as an acetonitrile or acetone solvate of 3,4-lutidinium pamoate. The crystal structures of these two new solvates are also reported.

中文翻译：

基于棕榈酸根离子的稳健多孔有机盐的选择性行为

已经研究了多孔氢键构架1对各种溶剂混合物的选择性。骨架1是3,4- idi啶鎓的水合物，结晶为THF溶剂化物1·THF。溶剂交换可通过将1·THF晶体暴露于溶剂蒸气中或将晶体浸入溶剂中进行。框架1当暴露于混合溶剂蒸气或液体形式的混合溶剂中时，显示出优先包含特定溶剂。分析表明，当暴露于液相或气相的混合溶剂中时，溶剂的比率相同，尽管由于所研究溶剂的蒸气压不同，液相和气相之间的摩尔比存在显着差异。在某些情况下，当浸入含有乙腈或丙酮的溶剂混合物中时，1·THF会重结晶为3,4- idi啶鎓的乙腈或丙酮溶剂化物。还报道了这两种新的溶剂化物的晶体结构。

更新日期：2017-12-22

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