Photochromic characteristics, photomodulated luminescence and ammonia vapor sensing properties of three D-A supramolecular assemblies

Crystal structure and Hirshfeld surface analysis of two iHOFs based on CH...NC hydrogen bonding

“…2). However, the role of such hydrogen bonding was still ignored, especially for charged ligands (Zhu et al, 2022).…”

“…The continuous R 2 2 (10) ring motif (see Fig. 1) (Bernstein et al, 1995), through CH� � �NC interactions, forms hydrogen-bonding networks of different dimensions (Dru ¨ck & Littke, 1978;Sakamoto et al, 2019;Li et al, 2007;van Rij & Britton, 1977), with unique one-dimensional hydrogenbonding pore structures (Ranganathan et al, 2007), planar layers (Wang & Zhao, 2008;Langhals et al, 2013;Jiao et al, 2018;He et al, 2004;Shteingarts et al, 2011) or undulating (wavy) laminar structures with trans connectivity (Lin et al, 2004;Zhu et al, 2022;Palde et al, 2008;Hua et al, 2016) (Fig. 2).…”