metal-organic compounds
In a polymer of 2,5-bis[4-methyl-3-(pyridin-3-yl)phenyl]-1,3,4-oxadiazole (L) with ZnCl2, one-dimensional P (plus) and M (minus) helical chains are formed, where the ligand has different directions of twist. The helical chains stack together via interchain π–π and C—Hπ interactions.