Controlling the crystal growth of potassium iodide with a 1,1′-bis(pyridin-4-ylmethyl)-2,2′-biimidazole ligand (L) – formation of a linear [K<sub>4</sub>I<sub>4</sub>L<sub>4</sub>]<sub>n</sub> polymer with cubic [K<sub>4</sub>I<sub>4</sub>] core units
CrystEngComm