A unique twisted rod-like pattern due to π-π stacking induced host-guest self-assembly

Here, we reported a unique twisted rod-like nano-architecture of as-synthesized 4-fluorocinnmaoyl chloride derived polynorbornene (PNORCNF) on the addition of 1-pyrenemethanol (PM) as a sensing probe. A significant change in the PNORCNF/PM microenvironment's polarity was observed with increasing PM concentration keeping the solvent (THF) unaltered. The change in polarity could be well documented with the morphological changes of the PNORCNF/PM system. We proposed pi-pi interaction between PM and cinnamoyl moiety of PNORCNF for this type of well-controlled hierarchical self-aggregation.

Automated summary

By adding 1-pyrenemethanol (PM) to the polynorbornene (PNORCNF), a significant change in the polarity of the PNORCNF/PM microenvironment was observed, leading to morphological changes in the system. The mechanism of this change may be attributed to the pi-pi interaction between PM and the cinnamoyl moiety of PNORCNF.