Fig. 3: The packing mode of HOF-NF.
From: Taming nitroformate through encapsulation with nitrogen-rich hydrogen-bonded organic frameworks

a 3D network of HOF-NF with two different arrangements of NF1 and NF2; b, c H-bonded environment of NF1 (left) and NF2 (right); d Overall structure view from a axis (space-filling mode).