State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China.
J Am Chem Soc. 2011 Aug 10;133(31):11884-7. doi: 10.1021/ja2040927. Epub 2011 Jul 18.
Zeolite A (LTA) is of much interest in zeolite family because of its large-scale industrial applications. Making Zeolite A (a typical 4-connected tetrahedral framework material) with a lower connectivity (3-connected) might lead to new open architecture with expanded ring size and enhanced functionality. The first interrupted Zeolite A with 3-connected network has been experimentally realized here by a boron imidazolate (im) framework material (BIF-20) with 3-coordinate BH(mim)(3)(-) building units. Additionally, a new strategy toward the construction of functional microporous metal-organic frameworks with interrupted zeolite-type topologies is presented by both 3-connected boron imidazolate frameworks (BIF-20 and BIF-21). BIF-20 has an unusual tetrahedral framework with both debonded α and β cages, and exhibits high H(2) uptake capacity.
沸石 A（LTA）因其在工业上的广泛应用而在沸石家族中备受关注。用连接度较低的（3 连接）沸石 A（一种典型的 4 连接的四面体骨架材料）可能会产生具有更大孔径和增强功能的新的开放式结构。本文通过一种具有 3 配位 BH(mim)(3)(-)构筑单元的硼咪唑（im）骨架材料（BIF-20），首次实现了具有 3 连接网络的中断沸石 A。此外，还通过 3 连接的硼咪唑骨架（BIF-20 和 BIF-21）提出了一种构建具有中断沸石型拓扑结构的功能性微孔金属有机骨架的新策略。BIF-20 具有不寻常的四面体骨架，既有脱键的 α 和 β 笼，又具有较高的 H(2)吸附能力。
