Photoresponsive Dynamic Supramolecular Assembly and Regulation of Stiff-Stilbenes
Stimulus-response systems have attracted extensive attention in recent years due to their widespread applications in material science and biological science.Dynamic supramolecular assembly is achieved by introducing stimulus response groups to alter the structure of functional groups and then change supramolecular assembling patterns under the influence of different stimulated factors.As a common molecular photoswitch,stiff-stilbenes have been widely used in controlled catalysis,drug delivery,molecular machinery,tunable phase conversion and so on.Stiff-stilbenes occur Z-E isomerization upon irradiation at diverse light,accompanied by the great alteration of their geometry configuration,and possess good photoisomerization characteristics.Here,some common synthesis methods and photoisomerization mechanism of stiff-stilbene derivatives and their recent research and applications in the fields of photo-switchable ion receptor,light-driven host-guest assembly,photo-responsive hydrogen bond assembly,photoinduced metal bond assembly and photocontrolled hydrophilic and hydrophobic assembly are reviewed.
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