The one-dimensional coordination polymer of palladium(II) with pyrazolato (Pz(-)) and azide (N-3(-)) as bridging ligands, of formula [Pd-3(mu-N-3) (mu-Pz)(5)]n, has been prepared. From IR and Raman studies it was evidenced the exobidentate nature of pyrazole ligands as well the mu-1, 1-bridging coordination of azido groups. NMR experiments showed two sets of broadened signals with different intensities indicating the presence of pyrazolato groups in distinct chemical environments. The proposed structure of [Pd-3(mu-N-3)(mu-Pz)(5)]n consists of a zigzag ribbon in which each (Pz)(2)Pd(Pz)(2) entity is bound to two stacked planar units [Pd(mu-Pz)(mu-N-3)Pd core] with very weak Pd-Pd interaction, based on UV-Vis spectroscopy.