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. 2023 Jun 20;145(26):14417–14426. doi: 10.1021/jacs.3c03614

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© 2023 The Authors. Published by American Chemical Society

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(a) Chemical structure of ETTA-CHDA COF. (b) Experimental PXRD (green line) and corresponding Pawley-refined (purple line) pattern (R_p = 2.43%, R_wp = 3.14%), simulated pattern from the eclipsed AA-stacking mode (red line), and their difference (gray line) between experimental PXRD and Pawley-refined pattern of ETTA-CHDA COF. (c) DFTB-optimized crystal structure viewed along the pseudoquadratic pore of ETTA-CHDA COF. (d) DFTB optimized crystal structure from a side view of ETTA-CHDA COF. (e) HR-TEM image of ETTA-CHDA COF showing a periodic structure. (f) A simulated TEM image generated from the molecular model of ETTA-CHDA COF shown in (c) and (d). The molecular model is partially overlaid to show the direction of the ETTA-CHDA COF in the simulated image. (g) HR-TEM image of ETTA-CHDA COF showing a periodic structure. (h) FFT image of (g).