47096-71-9Relevant articles and documents
Fluorescent Cross-Linked Supramolecular Polymer Constructed by Orthogonal Self-Assembly of Metal-Ligand Coordination and Host-Guest Interaction
Qian, Xiaomin,Gong, Weitao,Li, Xiaopeng,Fang, Le,Kuang, Xiaojun,Ning, Guiling
, p. 6881 - 6890 (2016)
A new host molecule consists of four terpyridine groups as the binding sites with zinc(II) ion and a copillar[5]arene incorporated in the center as a spacer to interact with guest molecule was designed and synthesized. Due to the 120 ° angle of the rigid aromatic segment, a cross-linked dimeric hexagonal supramolecular polymer was therefore generated as the result of the orthogonal self-assembly of metal-ligand coordination and host-guest interaction. UV/Vis spectroscopy, 1H NMR spectroscopy, viscosity and dynamic light-scattering techniques were employed to characterize and understand the cross-linking process with the introduction of zinc(II) ion and guest molecule. More importantly, well-defined morphology of the self-assembled supramolecular structure can be tuned by altering the adding sequence of the two components, that is, the zinc(II) ion and the guest molecule. In addition, introduction of a competitive ligand suggested the dynamic nature of the supramolecular structure. Orthogonal self-assembly: A fluorescent cross-linked supramolecular polymer was constructed by the orthogonal self-assembly of metal-ligand coordination and host-guest interaction. The well-defined morphology of the self-assembled supramolecular structure can be tuned by altering the adding sequence of the two components, that is, zinc(II) ion and the guest molecule (see figure).