Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Langmuir. 2011 Sep 20;27(18):11364-71. doi: 10.1021/la202107r. Epub 2011 Aug 17.
Controllable nanostructures with tunable dimensions were obtained via self-assembly of CBZ-L-lysine-functionalized tetrachloroperylene bisimides (4ClPBI-Lys). Depending on the nature of substitute, solvent polarity, and sample concentration, 4ClPBI-Lys could form nanosphere, nanowire, nanobelt, and nanosheet, which were found to have different degree of molecular ordering. The effects of substitution position with respect to L-lysine on 4ClPBI were also explored in terms of assembly nanostructures. Hydrogen bonding was important to promote formation of long-range ordering. The nanostructures of different assemblies were characterized using SEM, TEM, XRD, UV-vis, and FTIR spectroscopy. For each obtained supramolecular assembly, we also found that the molecular packing motif ultimately determined the corresponding devices' electronic properties.
通过 CBZ-L-赖氨酸官能化四氯对苯二酰亚胺（4ClPBI-Lys）的自组装，得到了具有可调尺寸的可控纳米结构。根据取代基的性质、溶剂极性和样品浓度的不同，4ClPBI-Lys 可以形成纳米球、纳米线、纳米带和纳米片，它们具有不同程度的分子有序性。还研究了 L-赖氨酸取代位置对 4ClPBI 组装纳米结构的影响。氢键对促进长程有序的形成很重要。使用 SEM、TEM、XRD、UV-vis 和 FTIR 光谱对不同组装的纳米结构进行了表征。对于每种获得的超分子组装体，我们还发现分子堆积模式最终决定了相应器件的电子性质。
