| Popis: |
Halogen-halogen (X···X) interaction is a kind of strong intermolecular interaction. This interaction has great impact on the aggregation structures and optoelectronic properties of organic π-conjugated molecules. However, it is still a great challenge to tune the X···X interactions among organic π-conjugated molecules. In this article, with trans -stilbene as an example, the regulation of halogen-halogen interactions between organic π-conjugated molecules is achieved through chemical structure modification, that is introducing electron-donating methylthio group and changing the position of halogen substituents on trans -stilbene skeleton. The influence of halogen-halogen interactions on the aggregation structure and luminescence properties of trans -stilbenes was investigated. |
