期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 137, 期 1, 页码 413-419出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja5111317
关键词
-
资金
- Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center (EFRC) - U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences [DE-SC0001015]
- Advanced Research Projects Agency - Energy (ARPA-E), U.S. Department of Energy [DE-AR0000249]
- Robert A. Welch Foundation [A-1725]
- U.S. DOE [DE-AC02-06CH11357]
Through a topology-guided strategy, a series of Zr-6-containing isoreticular porphyrinic metalorganic frameworks (MOFs), PCN-228, PCN-229, and PCN-230, with ftw-a topology were synthesized using the extended porphyrinic linkers. The bulky porphyrin ring ligand effectively prevents the network interpenetration which often appears in MOFs with increased linker length. The pore apertures of the structures range from 2.5 to 3.8 nm, and PCN-229 demonstrates the highest porosity and BET surface area among the previously reported Zr-MOFs. Additionally, by changing the relative direction of the terminal phenyl rings, this series replaces a Zr-8 cluster with a smaller Zr-6 cluster in a topologically identical framework. The high connectivity of the Zr-6 cluster yields frameworks with enhanced stability despite high porosity and ultralarge linker. As a representative example, PCN-230, constructed with the most extended porphyrinic linker, shows excellent stability in aqueous solutions with pH values ranging from 0 to 12 and demonstrates one of the highest pH tolerances among all porphyrinic MOFs. This work not only presents a successful example of rational design of MOFs with desired topology, but also provides a strategy for construction of stable mesoporous MOFs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据