Creation of multifunctional microchannels by coordination polymers

由于微孔化合物具有独特的分离、吸附、多相催化等性质，其化学研究受到了广泛的关注。尤其是新型多孔材料的开发是天然气储运领域最具吸引力的研究方向。合成并表征了一种新型三维配位聚合物[{[CuSiF6(4，4‘-bpy)2]8H2O)}n](4，4’-bpy=4，4‘-联吡啶)。该网络提供沿c轴的尺寸为ca 8Å*8Å的通道，以及沿a轴和b轴的尺寸为ca 6Å*2a的通道。以HK法为代表的微分孔体积图在7.8Å处只有一个尖峰。对甲烷吸附容量最大的5A沸石也进行了甲烷吸附实验。XRPD测量表明，在通道中没有任何客体分子的情况下，网络保持不变。

The chemistry of microporous compounds have been studied extensively due to unique properties such as separation, adsorption, heterogeneous catalysis, and so on. Especially, creation of novel porous materials as adsorbents is a most attractive research field for the purpose of storage and transport of natural gas. A novel 3-D coordination polymer, [{[CuSiF6 (4,4'-bpy)2] 8H2O)}n](4,4'-bpy= 4,4'-bipyridine) was synthesized and characterized. This network provides channels with dimensions of ca 8 Å * 8 Å along the c-axis and ca 6 Å * 2 A along the a- and b-axes. The differential pore volume plot, represented by the HK method, shows only one sharp peak at ca 7.8 Å. The methane adsorption experiment was also carried out on zeolite 5A, which has the highest known methane adsorption capacity. XRPD measurement shows that the network is retained in the absence of any guest molecules in the channels.