Separation of Linear and Branched Alkanes Using Host–Guest Complexation of Cyclic and Branched Alkane Vapors by Crystal State Pillar[6]arene,Angewandte Chemie International Edition

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Separation of Linear and Branched Alkanes Using Host–Guest Complexation of Cyclic and Branched Alkane Vapors by Crystal State Pillar[6]arene
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-01-15 , DOI: 10.1002/anie.201711575
Tomoki Ogoshi _{1,

2,

3} , Kazuki Saito ₁ , Ryuta Sueto ₁ , Ryosuke Kojima ₁ , Yukie Hamada ₁ , Shigehisa Akine _{1,

3} , Adhitya Mangala Putra Moeljadi ₄ , Hajime Hirao _{2,

4,

5} , Takahiro Kakuta ₁ , Tada‐aki Yamagishi ₁

Affiliation

Activated crystals of pillar[6]arene produced by removing the solvent upon heating were able to take up branched and cyclic alkane vapors as a consequence of their gate‐opening behavior. The uptake of branched and cyclic alkane vapors by the activated crystals of pillar[6]arene induced a crystal transformation to form one‐dimensional channel structures. However, the activated crystals of pillar[6]arene hardly took up linear alkane vapors because the cavity size of pillar[6]arene is too large to form stable complexes with linear alkanes. This shape‐selective uptake behavior of pillar[6]arene was further utilized for improving the research octane number of an alkane mixture of isooctane and n‐heptane: interestingly, the research octane number was dramatically improved from a low research octane number (17 %) to a high research octane number (>99 %) using the activated crystals of pillar[6]arene.

中文翻译：

结晶态立柱[6]芳烃的主客体络合分离环状和支链烷烃

通过加热除去溶剂产生的支柱[6]芳烃的活化晶体由于其开门行为而能够吸收支链和环状烷烃蒸气。支柱[6]芳烃的活化晶体对支链和环状烷烃蒸气的吸收，引起晶体转变，形成一维通道结构。然而，支柱[6]芳烃的活化晶体几乎不吸收线性烷烃蒸气，因为支柱[6]芳烃的空腔尺寸太大而不能与线性烷烃形成稳定的络合物。立柱[6]芳烃的这种择形吸收行为被进一步用于改善异辛烷和n烷烃混合物的研究辛烷值。庚烷：有趣的是，使用支柱[6]芳烃的活化晶体，研究辛烷值从低研究辛烷值（17％）显着提高到高研究辛烷值（> 99％）。

更新日期：2018-01-15

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