化学稳定的金属有机多面体的合成和结构
Zheng Lu1, Carolyn B Knobler, Hiroyasu Furukawa
1Center for Reticular Chemistry, Department of Chemistry and Biochemistry, University of California-Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, USA.
Journal of the American Chemical Society
|August 20, 2009
概括
新的金属有机多面体 (MOP) 具有显著的化学稳定性和永久性多孔性. 这些形十二面体结构显示出各种应用的潜力,因为它们的可访问的内部空洞.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 纳米技术纳米技术
背景情况:
- 金属有机多面体 (MOP) 是具有可调节结构的晶体材料.
- 开发具有增强化学稳定性和多孔性的MOP对于实际应用至关重要.
- 基于伊米达酸盐的MOP提供了有希望的结构多样性和功能性.
研究的目的:
- 为了设计和合成新的基于伊米达酸盐金属的形十二面体.
- 为了研究合成的MOPs的化学稳定性和多孔性.
- 确认内部空洞的可访问性,以应用于潜在的应用.
主要方法:
- 合成MOP-100和MOP-101使用[NH 3]Pd 3]Pd 4]和特定的四基和imidazolyl) 酸连接物.
- 在酸性,基本性和有机溶剂环境中的化学稳定性的表征.
- 气体吸附研究 (N(2) 异热) 来确定表面积和多孔性.
- 进行离子交换实验,以验证空洞的可访问性.
主要成果:
- 成功合成了两种基于伊米达酸盐金属的罗姆二十二面体,MOP-100和MOP-101.
- 在酸性,基性溶液和常见的有机溶剂中观察到的异常化学稳定性.
- MOP-101具有永久的多孔性,Langmuir和BET的表面积分别为350米和280米(2) g(-1).
- 阳离子交换实验证实了多面体内部空洞的可访问性.
结论:
- 设计的MOP显示出显著的化学强度.
- 永久的多孔性和可访问的腔体表明,在分离,催化或药物输送方面有潜在的应用.
- 这些发现有助于开发先进的多孔材料.
相关概念视频
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