Exploring cavities in Type II Porous Liquids with Xenon
Exploring cavities in Type II Porous Liquids with Xenon
复制标题
DOI：
10.1016/j.molliq.2022.121038
复制
发表时间：
2022-12
影响因子：
6
通讯作者：
Matteo Boventi;Michele Mauri;Francesca M Alexander;S. James;R. Simonutti;F. Castiglione
中科院分区：
文献类型：
--
作者：
Matteo Boventi;Michele Mauri;Francesca M Alexander;S. James;R. Simonutti;F. Castiglione
采用129xe核磁共振波谱技术研究了以Noria-OEt为空分子主体，溶解在15冠5溶剂中制备的II型多孔液体（PLs）的多孔拓扑结构。在不同Noria-OEt浓度下制备的PLs溶液中测量的氙核磁共振参数，如化学位移和t1弛豫时间，与材料的固有微孔结构有关。实验数据是在多PLs腔内氙原子的多位点模型的基础上解释的。扩散核磁共振实验表明，与纯溶剂相比，氙在PLs中的迁移率相似。
The porous topology of Type II Porous Liquids (PLs), prepared using Noria-OEt as an empty molecular host dissolved in 15-crown-5 solvent, is investigated with129Xe NMR Spectroscopy. Xenon NMR parameters, such as chemical shifts andT1relaxation times, measured in PLs solutions prepared at various Noria-OEt concentrations, are related to the intrinsic microporous structure of the material. The experimental data are interpreted on the basis of a multiple-site model for xenon atoms within the multiple PLs cavities. Diffusion NMR experiments show a similar mobility of xenon in PLs compared with the pure solvent.