The effect of reaction conditions on the nature of cadmium 1,3,5-benzenetricarboxylate metal-organic frameworks

► Three new cadmium metal-organic frameworks structurally characterised. ► The product from the reaction of cadmium(II) nitrate and 1,3,5-benzenetricarboxylic acid at 95 °C in DMF depends on the reaction time. ► Longer reaction times lead to higher network dimensionalities. ► Pyrazine is incorporated as a bridging ligand but does not pillar sheets into 3D networks.