Fig. 1: Schematic illustration.
From: Hydrogen-bonded organic frameworks for photocatalytic synthesis of hydrogen peroxide
a Schematically showing the structures of general HOF (TTF-HOF) and donor-acceptor HOF (TTF-Bpy-HOF); crystal structures of b TTF-HOF stabilized by dimeric O-H…O hydrogen bonds with the O…O distance (DO…O) of 2.64 Å, and c TTF-Bpy-HOF stabilized by O-H…O and O-H…N hydrogen bonds (DO…O = 2.56 Å; DO…N = 2.63 Å) [C (grey), H (white), O (red), N (blue) and S (yellow)].
