Musumeci Chiara, Wałe Sa-Chorab Monika, Gorczyński Adam, Markiewicz Grzegorz, Bogucki Andrzej, Świetlik Roman, Hnatejko Zbigniew, Jankowski Wojciech, Hoffmann Marcin, Orgiu Emanuele, Stefankiewicz Artur R, Patroniak Violetta, Ciesielski Artur, Samorì Paolo
Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France.
Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61614 Poznań, Poland.
ACS Omega. 2017 Apr 30;2(4):1672-1678. doi: 10.1021/acsomega.7b00286. Epub 2017 Apr 26.
Small π-conjugated molecules can be designed and synthesized to undergo controlled self-assembly forming low-dimensional architectures, with programmed order at the supramolecular level. Such order is of paramount importance because it defines the property of the obtained material. Here, we have focused our attention to four pyromellitic diimide derivatives exposing different types of side chains. The joint effect of different noncovalent interactions including π-π stacking, H-bonding, and van der Waals forces on the four derivatives yielded different self-assembled architectures. Atomic force microscopy studies, corroborated with infrared and nuclear magnetic resonance spectroscopic measurements, provided complementary multiscale insight into these assemblies.
可以设计并合成小的π共轭分子，使其进行可控的自组装，形成低维结构，并在超分子水平上具有有序排列。这种有序排列至关重要，因为它决定了所得材料的性质。在此，我们将注意力集中在四种具有不同类型侧链的均苯四甲酸二酰亚胺衍生物上。不同的非共价相互作用（包括π-π堆积、氢键和范德华力）对这四种衍生物的共同作用产生了不同的自组装结构。原子力显微镜研究，再加上红外和核磁共振光谱测量，为这些组装体提供了互补的多尺度见解。
