两亲Cu-氮杂亚甲基二吡咯染料J-聚集体纳米片的制备及表征

Preparation and characterization of J-aggregates nanosheets based on amphiphilic Cu-azadipyrromethene dye

以含两条十二烷氧基疏水链的氮杂亚甲基二吡咯(ADP)和含两条聚乙二醇亲水链的ADP为配体与Cu(Ⅱ)络合,合成了一种两亲性Cu(Ⅱ)-ADP配合物(染料Ⅰ),通过1HNMR、MS及元素分析仪确认了其化学结构,采用UV-Vis、AFM、TEM、小角X射线散射仪对染料Ⅰ聚集体的形貌和结构进行了表征。结果表明,染料Ⅰ在乙醇/水混合溶剂中自组装形成J-聚集体,最大吸收峰发生89 nm的红移。染料Ⅰ聚集体呈现二维纳米片形貌,并以双分子层形式进行堆积。

An amphiphilic Cu(Ⅱ)-azadipyrromethene(ADP)complex(dyeⅠ)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).DyeⅠwas then characterized by 1HNMR,MS,and elemental analyzer for chemical structure confirmation,while dyeⅠaggregates were further evaluated by UV-Vis,AFM,TEM and small angle X ray scatterer for morphology and structure analysis.The results indicated that the dyeⅠself-assembled into J-type aggregates in ethanol/water with the maximum absorption peak redshifted 89 nm.Moreover,the dyeⅠaggregates exhibited a two-dimensional nanosheet morphology and was stacked in bilayer form.