Self-Assembled Supramolecular Architecture of a Bolaamphiphilic Diacid on the Subphases Containing Ag(I) and Eu(III) Metal Ions
Self-Assembled Supramolecular Architecture of a Bolaamphiphilic Diacid on the Subphases Containing Ag(I) and Eu(III) Metal Ions
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DOI：
10.1021/la026141r
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发表时间：
2003
期刊：
影响因子：
3.9
通讯作者：
Qing Lu;Yanhong Luo;A. Li;Minghua Liu
中科院分区：
文献类型：
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作者：
Qing Lu;Yanhong Luo;A. Li;Minghua Liu
研究了双亲性二酸 1,20-十八烷二甲酸 (ODA) 在含有各种金属离子的亚相上的自组装超分子纳米结构。与纯水表面的双亲酸不同，ODA 的朗缪尔膜在含有 Ag(I) 或 Eu(III) 离子的面下相上观察到奇异的纳米结构。在 Ag(I) 亚相的情况下，观察到条纹形貌，而对于从 Eu(III) 亚相沉积的 ODA 的单层 LB 膜，观察到盘形形貌。所有这些架构均由直径为 50−70 nm 的纳米盘组成。采用原子力显微镜、透射电子显微镜、X射线衍射和X射线光电子能谱等一系列方法对沉积的Langmuir-Blodgett薄膜进行表征。有人认为ODA与Ag(I)或Eu(III)之间的络合物形成导致了自组装纳米结构。所报道的纳米结构形成的可能机制...
The self-assembled supramolecular nanostructures of a bolaamphiphilic diacid, 1,20-octadecanedicarboxylic acid (ODA), on the subphase containing various metal ions have been investigated. Different from the bolaamphiphilic acid on pure water surface, exotic nanostructures were observed for the spreading Langmuir film of ODA on the subphase containing Ag(I) or Eu(III) ions. In the case of the Ag(I) subphase, a stripe morphology was observed, while a disk morphology was observed for a one-layer LB film of ODA deposited from the Eu(III) subphase. All of these architectures consisted of nanodisks with a diameter of 50−70 nm. A series of methods such as atomic force microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectra were used to characterize the deposited Langmuir−Blodgett films. It was suggested that the complex formation between ODA and Ag(I) or Eu(III) caused the self-assembled nanostructure. A possible mechanism for the formation of the reported nanoarchitectur...