三苯胺
超分子化学
乙苯
化学
单晶
甲苯
选择性
对二甲苯
二甲苯
尿素
结构异构体
Crystal(编程语言)
结晶学
晶体结构
化学工程
有机化学
光化学
催化作用
程序设计语言
工程类
计算机科学
作者
Dustin W. Goodlett,Ammon J. Sindt,Md Faizul Islam,Mark D. Smith,Linda S. Shimizu
标识
DOI:10.1021/acs.cgd.1c00846
摘要
Supramolecular self-assembly of brominated triphenyl amine bis-urea macrocycles leads to the formation of porous organic crystals with small elliptical 4.3 Å × 6.5 Å unidirectional pores. Here, this porous material has been applied in a simple vapor loading technique for the enrichment of isomeric mixtures of xylene. The host exhibits selectivity toward loading linear isomers present in the mixture that better match the channel topography. The same crystals were reused for multiple separations, highlighting the robust nature of the crystals. Host–guest complexes with each xylene constitutional isomer as well as with ethylbenzene were separately prepared by single-crystal-to-single-crystal guest exchange and their structures analyzed by single-crystal X-ray diffraction. Room-temperature xylene isomer enrichment employing these porous organic crystals provides insight toward energy efficient alternatives for separating complex petrochemical feed mixtures.
科研通智能强力驱动
Strongly Powered by AbleSci AI