Two novel coordination polymers based on mixed ligands, [Zn(dpb)(bdc)(H2O)]n (1) and [Cd(dpb)(bbdc)(H2O)(DMF)]n (2) [dpb = 1, 4‐bis(pyridin‐3‐ylmethoxy)benzene, H2bdc = 1, 4‐benzenedicarboxylate, H2bbdc = 4, 4′‐dibenzenedicarboxylate], were synthesized under hydrothermal conditions. Compound 1 forms meso‐helical chain and shows three fold interpenetrating architecture with 4‐connected net {6 6} diamond topology. Compound 2 is a left‐ and right‐handed helical layer, which are interacted by π–π stacking interactions to construct a 3D framework. The luminescent properties of the compounds are discussed.