Two new Cd(II) coordination polymer based on Biphenyl-3, 3′, 5, 5′-tetracarboxylic acid

Two new Cd (II) coordination polymers are constructed by Biphenyl-3, 3′, 5, 5′-tetracarboxylic acid with nitrogenous bridging rigid and flexible ligands. 1 and 2 are both porous framework with effective porosities of 16.2% and 20.7%, whose skeletons are stable up to 321°C and 335°C respectively.140