# U-shaped stereoscopic design strategy toward N-doped nanographene segment

## TL;DR

Scientists designed and synthesized a U-shaped molecule with nitrogen, which forms unique structures in its crystal form.

## Contribution

The novel U-shaped bis(pyrene-quinoxaline) molecule was designed and synthesized using a stereoscopic strategy.

## Key findings

- The U-shaped N-heteroacene was successfully synthesized.
- Single crystal X-ray diffraction revealed herringbone stacking and incompletely closed pores.

## Abstract

There have been scarce reports about stereoscopic design of N-heteroacenes (NHAs), especially for the electron-deficient π-building blocks. Herein, we report the design and synthesis of a U-shaped bis(pyrene-quinoxaline) (BPQ). Single crystal X-ray diffraction reveals the herringbone stacking pattern and the presence of regular and incompletely closed pores.

Through a stereoscopic design strategy, U-shaped N-heteroacene was synthesized, and shows regular and incompletely closed pores within the crystal structure.