Construction of biporous coordination networks via π–π interaction

Biporous 3D-coordination networks {[(ZnI2)3(1)2(G)]·solvents}z (G = triphenylene or perylene) were synthesized by the electron-deficient triazine ligand (1) with ZnI2 in the presence of an electron-rich guest (G) via charge-transfer interaction. The frameworks of networks include predictable infinite aromatic stacking between 1 and G. Also, single-crystal-to-single-crystal guest-exchange was successfully performed in the channels without loss of intercalated guest molecules.