Distinct Packings of Supramolecular Building Blocks in Metal–Organic Frameworks Based on Imidazoledicarboxylic Acid

When
the supramolecular building block packings (face-centered, body-centered,
and primitive cubic) with different interactions (hydrogen and coordination
bonding) were controlled, four new structures based on octahedral
MII (M = Zn, Ni, Mn) and imidazoledicarboxylate were constructed.
The interaction modes between the supramolecular building blocks affect
the water stability of the structures. Furthermore, with uncoordinated
carboxylate O atoms in the structures, these compounds demonstrate
a strong capability of capturing metal ions in the solution.

当调控具有不同相互作用（氢键与配位键）的超分子构筑基元的堆积方式（面心立方、体心立方与简单立方）时，我们构筑了四类基于八配位二价金属离子（M = Zn、Ni、Mn）与咪唑二羧酸酯的新型结构。超分子构筑基元间的相互作用模式会影响该类结构的水稳定性。此外，由于此类结构中存在未配位的羧酸氧原子，这些化合物展现出优异的溶液中金属离子捕获能力。