Fig. 2.

Simulated (red) and experimental (black) PXRD patterns of T-COF 2. Inset shows its building blocks and the partial structure viewed normal and parallel to the ab plane. Yellow, red, gray, and pink spheres represent S, O, C, and B atoms, respectively. Extensive attempts to improve the crystallinity of this compound were unsuccessful; we assign it to the bent nature of H₄TDB (vide infra and Fig. 5).