Co-crystallization of hemimellitic acid with 4,4'-bipyridine forming a pillar-layered hydrogen-bonded network.
Co-crystallization of hemimellitic acid with 4,4'-bipyridine forming a pillar-layered hydrogen-bonded network.
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半苯四酸与 4,4-联吡啶共结晶形成柱状层状氢键网络。
DOI：
10.1107/s0108270105026442
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Yan
中科院分区：
文献类型：
--
作者：
M. Du;Zhihui Zhang;Yan
Co-crystallization of hemimellitic acid (benzene-1,2,3-tricarboxylic acid) dihydrate (H3HMA.2H2O) with 4,4'-bipyridine (4,4'-bpy) affords the 1:1 co-crystal benzene-1,2,3-tricarboxylic acid-4,4'-bipyridine (1/1), H3HMA.4,4'-bpy or C9H6O6.C10H8N2. Strong O-H...O hydrogen bonds connect the acid molecules to form a one-dimensional zigzag chain, around which the 4,4'-bpy components are fixed as arms via O-H...N interactions, resulting in a ladder motif. Through weak C-H...O non-covalent forces, the resulting acid layers are extended into a three-dimensional pillar-layered architecture supported by rod-like 4,4'-bpy components. The influence on hydrogen-bonding models is also discussed, with the discovery of an unexpected interaction motif that does not follow the routine hydrogen-bonded hierarchical rule in the construction of an acid-base co-crystal.
