微型多孔材料
材料科学
Crystal(编程语言)
化学工程
二氯甲烷
甲苯
二苯并呋喃
多孔性
结晶学
有机化学
化学
复合材料
计算机科学
工程类
程序设计语言
溶剂
作者
Yu Tian,Jie Yang,Mingxue Gao,Zhenjiang Liu,Meiting Zhao,Manman Fang,Zhen Li
出处
期刊:Materials horizons
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:9 (2): 731-739
被引量:14
摘要
Organic porous crystals constructed by only a single kind of weak molecular interaction are invaluable to understanding the nature of the formation of organic porous materials and developing new types of porous materials. Here, we designed and synthesized two pure organic compounds of PBO and PBS through integrating planar dibenzothiophene/dibenzofuran and two phenothiazine groups together with twisted C-N bonds, which form organic microporous crystals with very good stability against strong acids and bases VIA pure C-H⋯π interactions. Accordingly, the effective absorption of toluene has been successfully realized with an adsorbing capacity of 6.20 mmol g-1, regardless of the interference of water vapor. Excitingly, these microporous materials exhibit interesting crystal-to-crystal transformation (CCT) properties accompanied by changed pore size on being exposed to different organic vapors. Therefore, the desorption process of toluene could be completed through a simple exposure to dichloromethane (DCM) vapor and the second transformation of the crystal occurred in this process.
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