A Porous Metal-Organic Framework with Dynamic Pyrimidine Groups Exhibiting Record High Methane Storage Working Capacity
A Porous Metal-Organic Framework with Dynamic Pyrimidine Groups Exhibiting Record High Methane Storage Working Capacity
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DOI：
10.1021/ja501810r
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发表时间：
2014-04-30
影响因子：
15
通讯作者：
Chen, Banglin
中科院分区：
文献类型：
--
作者：
Li, Bin;Wen, Hui-Min;Chen, Banglin
我们已经实现了在连接体上具有嘧啶基团的新的多孔金属-有机框架UTSA-76 a，其在298 K和65 bar下表现出类似于260 cm（3）（STP）cm（-3）的高体积甲烷吸收，并记录了类似于200 cm（3）（STP）cm（-3）（在5和65 bar之间）的高工作容量。这种异常高的工作能力归因于UTSA-76 a内的中心“动态”嘧啶基团，其能够调整其取向以优化高压下的甲烷填充，如计算研究和中子散射实验所揭示的。
We have realized a new porous metal-organic framework UTSA-76a with pyrimidine groups on the linker, exhibiting high volumetric methane uptake of similar to 260 cm(3) (STP) cm(-3) at 298 K and 65 bar, and record high working capacity of similar to 200 cm(3) (STP) cm(-3) (between 5 and 65 bar). Such exceptionally high working capacity is attributed to the central "dynamic" pyrimidine groups within UTSA-76a, which are capable of adjusting their orientations to optimize the methane packing at high pressure, as revealed by computational studies and neutron scattering experiments.