Extended Data Fig. 2: Comparison of XPS curves of COF-991-CN and COF-991.
From: Crystalline coumarin-linked covalent organic frameworks
a, Full XPS curves of COF-991-CN and COF-991. b-d, Experimental data, fitted curves, linear deconvolutions and background curves for O 1s (b), N 1s (c) and C 1s (d) from XPS curves of COF-991-CN (top) and COF-991 (bottom).
