Synthesis and characterization of a novel complex [Pd(Bipy)₂](Bpcc) · 11H₂O

The complex [Pd(Bipy)(2)](Bpcc) center dot 11H(2)O has been synthesized and characterized (Bipy = 2,2'-bipyridyl, H(2)Bpcc = 4,4'-biphenylcarboxylic acid). The supramolecular architecture was constructed through hydrogen bonding and pi-pi-stacking. The Pd atom is four-coordinated and forms a distorted square geometry. The free H2O molecules form 1D infinite zigzag chains of water cluster, while the water cluster and Bpcc(2-) form an organic-water framework.