作为分子的晶体:合成后的共价功能化,以石化伊米达酸框架为基础
William Morris1, Christian J Doonan, Hiroyasu Furukawa
1Center for Reticular Chemistry, Department of Chemistry and Biochemistry, University of California-Los Angeles, 607 East Charles E. Young Drive, Los Angeles, California 90095, USA.
Journal of the American Chemical Society
|August 30, 2008
概括
合成了一种新的晶体泽奥利特性伊米达酸盐框架,ZIF-90,具有苏达酸盐拓结构和高孔隙性. ZIF-90的功能化产生了ZIF-91和ZIF-92,它们也表现出显著的表面积并保持了结晶性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- 石化模酸框架 (ZIFs) 是一种具有多样化应用的金属有机框架.
- 开发具有可调节性质的新ZIF对于推进材料科学至关重要.
研究的目的:
- 综合和描述一个新的ZIF,称为ZIF-90.
- 探索ZIF-90的功能化,并研究由此产生的材料的特性.
主要方法:
- 合成ZIF-90使用 (II) 酸盐和伊米达酸-2-碳酸 (ICA).
- 使用N2吸附-脱附异热体对ZIF-90的表征.
- ZIF-90的化学修饰通过减少和胺基的形成产生ZIF-91和ZIF-92.
主要成果:
- ZIF-90表现出一种苏达石类型的拓,其光圈为3.5 Å,孔径为11.2 Å.
- ZIF-90具有很高的孔隙性,Langmuir和BET的表面积分别为1320米2/g和1270米2/g.
- 功能化的ZIF-91和ZIF-92保持了高晶度,而ZIF-91保持了永久的多孔性.
结论:
- ZIF-90是一种新的,高度多孔的晶体泽奥利特化伊米达酸框架.
- 在ZIF-90中的基功能允许直接化学修饰成酒精和胺基功能.
- 合成的功能化ZIFs,ZIF-91和ZIF-92,对需要具有定制性质的多孔材料的应用有希望.
相关概念视频
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