Crystal engineering on superpolyhedral building blocks in metal-organic frameworks applied in gas adsorption

被引：0

作者：

Chen, Ying-Pin ^{[1
,2
]}

Liu, Tian-Fu ^{[2
]}

Fordham, Stephen ^{[2
]}

Zhou, Hong-Cai ^{[1
,2
]}

机构：

[1] Department of Materials Science and Engineering, Texas AandM University, College Station,TX,77843, United States

[2] Department of Chemistry, Texas AandM University, College Station,TX,77842, United States

来源：

Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials | 2015年 / 71卷

关键词：

Organometallics - Carboxylation - Copper oxides - Crystalline materials - Nickel compounds;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Two metal-organic frameworks [PCN-426(Ni) and PCN-427(Cu)] have been designed and synthesized to investigate the structure predictability using a SBB (supermolecular building blocks) approach. Tetratopic ligands featuring 120° angular carboxylate moieties were coordinated with a [Ni3(μ3-O)] cluster and a [Cu2O2] unit, respectively. As topologically predicted, 4-connected networks with square coordination adopted the nbo net for the Ni-MOF and ssb net for the Cu-MOF. PCN-426(Ni) was augmented with 12-connected octahedral SBBs, while PCN-427(Cu) was constructed with tetragonal open channels. After a CO2 supercritical drying procedure, the PCN-426(Ni) possessed a Brunauer-Emmett-Teller (BET) surface area as high as 3935m2g-1 and impressively high N2 uptake of 1500cm3g-1. This work demonstrates the generalization of the SBB strategy, finding an alternative to inconvenient synthetic processes to achieve the desired structural features. © 2015.

引用

页码：613 / 618