Fig. 1: Schematic of synthetic TFPT-BTAN-AO.

a Synthesis of TFPT-BTAN and TFPT-BTAN-AO. b Side and top c views of an eclipsed AA-stacking model of TFPT-BTAN (light green, C; blue, N; light gray, H). d Graphic view of TFPT-BTAN-AO (light green, C; red, O; blue, N; light gray, H).