Two different one-dimensional supra­molecular chains formed from the reaction of 2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline with two different precursors, Co(NO₃)₂ and CoCl₂

Two different one-dimensional supra­molecular chains with Co^II cations have been synthesized based on the semi-rigid ligand 2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl)quinoline (L), obtained by condensation of 2-(1H-benzimidazol-2-yl)quinoline and 4-(chloro­methyl)pyridine hydro­chloride, and the precursors Co(NO₃)₂ and CoCl₂.