Double-step gas sorption of a two-dimensional metal-organic framework
Double-step gas sorption of a two-dimensional metal-organic framework
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DOI：
10.1021/ja073568h
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发表时间：
2007-10-17
影响因子：
15
通讯作者：
Kaneko, Katsurni
中科院分区：
文献类型：
--
作者：
Kondo, Atsushi;Noguchi, Hiroshi;Kaneko, Katsurni
报道了由二维层叠片组成的多孔金属-有机骨架(PMOF)的合成、结构变化和氮气吸附等温线。这种化合物很容易失去客体分子，并缩小其层间距离。无客体物种表现出独特的两步吸附等温线。吸附和X-射线结构分析表明，第一次吸收是微孔填充，而第二次吸收来自于笼状结构。这解释了总吸附量相当于晶体原始空隙体积的大约两倍。
The synthesis, structural changes, and nitrogen gas sorption isotherm of a porous metal-organic framework (PMOF) comprising stacked two-dimensional sheets are reported. This compound easily loses guest molecules and shrinks its interlayer distance. The guest-free species show a unique double-step sorption isotherm. Sorption and X-ray structural analyses have clarified that the first uptake is a micropore filling, while the second uptake originates from a clathrate formation. This explains the total sorption amount corresponding to about the double of the original void volume of the crystals.