Preparation and characterization of J-aggregates nanosheets based on amphiphilic Cu-azadipyrromethene dye
An amphiphilic Cu(Ⅱ)-azadipyrromethene(ADP)complex(dye Ⅰ)was designed and synthesized from coordination of one ADP ligand containing two hydrophobic dodecyloxy chains and one ADP ligand containing two hydrophilic poly ethylene glycol chains with Cu(Ⅱ).Dye Ⅰ was then characterized by 1HNMR,MS,and elemental analyzer for chemical structure confirmation,while dye Ⅰaggregates were further evaluated by UV-Vis,AFM,TEM and small angle X ray scatterer for morphology and structure analysis.The results indicated that the dye Ⅰ self-assembled into J-type aggregates in ethanol/water with the maximum absorption peak redshifted 89 nm.Moreover,the dye Ⅰ aggregates exhibited a two-dimensional nanosheet morphology and was stacked in bilayer form.
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