Key Laboratory of Organo-pharmaceutical Chemistry, Gannan Normal University, Ganzhou 341000, P. R. China.
Nanoscale. 2012 Jan 7;4(1):148-51. doi: 10.1039/c1nr11168j. Epub 2011 Nov 8.
Two-component supramolecular networks have been constructed with a symmetric triphenylene derivative with three carboxyl groups (sym-TTT) and melamine. Two kinds of hydrogen bonds with different strength are involved in the multi-component self-assembly, one is H-bond between carboxyl group of sym-TTT and melamine, the other is intermolecular H-bond between melamine molecules. These interactions drive a structural transformation from close-packed network to hexagonal network with active amino groups inside of the cavity. Scanning tunneling microscopy (STM) measurements reveal that the functionalized network of sym-TTT/melamine could recognise Fe(3+). These results could be helpful for designing functionalized molecular networks by multi-component self-assembling strategy.
已构建了由具有三个羧基的对称三苯并噻吩衍生物（sym-TTT）和三聚氰胺组成的两组件超分子网络。多组分自组装涉及两种具有不同强度的氢键，一种是 sym-TTT 羧基与三聚氰胺之间的氢键，另一种是三聚氰胺分子之间的分子间氢键。这些相互作用促使结构从紧密堆积的网络转变为具有空腔内部活性氨基的六方网络。扫描隧道显微镜（STM）测量表明，sym-TTT/三聚氰胺的功能化网络可以识别 Fe(3+)。这些结果可能有助于通过多组分自组装策略设计功能化的分子网络。
