“…2a, all constructed Cor-D–A-POPs possess a similar broad peak centered at around 2 θ = 21.7°, which represents an amorphous packing of the polymeric structure. 37–41 The C 1s XPS spectra of all constructed Cor-D–A-POPs (Fig. 2b) are deconvoluted into four peaks positioned at around 284.2 ± 0.1, 285.6 ± 0.1, 287.0 and 288.4 eV, which correspond to C–C/CC, C–N, CN and C–S bonds, respectively.…”