Fig. 3

Characterizations of chemical structures for g-C40N3-COF. a 13C CP/MAS solid-state NMR spectra of g-C40N3-COF, compared with 13C NMR spectra of DCTSP (model compound) in CDCl3. b FT-IR spectra of g-C40N3-COF and corresponding monomers

Characterizations of chemical structures for g-C40N3-COF. a 13C CP/MAS solid-state NMR spectra of g-C40N3-COF, compared with 13C NMR spectra of DCTSP (model compound) in CDCl3. b FT-IR spectra of g-C40N3-COF and corresponding monomers