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具有不同张力金属中心的多孔金属有机框架的气体吸附性能和H2亲和力研究。

Investigation of gas adsorption performances and H2 affinities of porous metal-organic frameworks with different entatic metal centers.

作者信息

Ma Shengqian, Yuan Daqiang, Chang Jong-San, Zhou Hong-Cai

机构信息

Chemical Sciences & Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.

出版信息

Inorg Chem. 2009 Jun 15;48(12):5398-402. doi: 10.1021/ic900475q.

DOI:10.1021/ic900475q
PMID:19456136
Abstract

Three isomorphous porous metal-organic frameworks (MOFs; PCN-9 (Co/Fe/Mn)) with entatic metal centers have been constructed on the basis of the trigonal planar H(3)TATB ligand and a novel square-planar secondary building unit. N(2) adsorption isotherms at 77 K confirmed the permanent porosities of the three porous MOFs. Variable-temperature adsorption measurements of H(2) revealed that the H(2) affinities of the three porous MOFs are related to the nature of entatic metal centers, which reversely affect their H(2) uptake capacities.

摘要

基于三角平面的H(3)TATB配体和一种新型的四方平面二级构筑单元，构建了三种具有张力金属中心的同构多孔金属有机框架材料（MOF；PCN-9（Co/Fe/Mn））。77K下的N(2)吸附等温线证实了这三种多孔MOF的永久孔隙率。H(2)的变温吸附测量表明，这三种多孔MOF对H(2)的亲和力与张力金属中心的性质有关，这反过来又影响它们对H(2)的吸附容量。

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