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Figure 4
High-resolution XPS spectra for COF-300-3D: (a) C 1s, (b) N 1s; and for COF-300-7D: (c) C 1s, (d) N 1s. (e) Overlay of both N 1s spectra (COF-300-3D: dashed green; COF-300-7D: red) with the C=NH2+ contribution (cyan). The background is shown in black.

IUCrJ
Volume 11| Part 4| July 2024| Pages 510-518
ISSN: 2052-2525