Organically templated metal-organic framework with 2-fold interpenetrated {3~3.5~9.6~3}-lcy netf

摘要

A new organic cation templated Zn(n) complex (Et_3NH)IZn_4-(ip)_3(bta)_3) (1, ip = isophthalate, Hbta = benzotriazole) which consists of plate-like Zn_4(bta)_3 units bridged by ip ligands is reported; it is the first example of a 6-connected uninodal {3~3.5~9.6~3}-lcy net which has never been observed previously in MOFs but has been theoretically anticipated. The recent progress in the synthesis of new crystalline micro-porous materials with novel compositional and topological characteristics promises new and advanced applications in shape or size selective adsorbents, ion exchangers, and catalysts. One of the most important contributing factors for the diversity of crystalline microporous materials now known is the organic templating method. Especially, the use of positive-charged organic templates (also called structure-directing agents, most commonly tetraalkylammonium cations or pro-tonated cationic amines) to direct the self-assembly of molecular precursors into extended frameworks is widely found in inorganic framework materials. However, few 3-D covalent metal-organic frameworks (MOFs) with positive-charged organic templates are known.