Use of multifunctional ligands, bearing both neutral and anionic donor groups has attracted great attention nowadays since both donor groups of the ligand can coordinate to metal centers, and thus build in coordination polymer (CP) without counter anions. These ligands allow the generation of various coordination architectures and topologies. The picolinic acid and its derivatives are a class of such bifunctional ligands being widely used to construct various CPs not only for structural interest but also for diverse applications. Herein, we report two mixed-ligand CPs based upon Cu(II)-picolinate building unit, 2D [Cu2(pic)2(OAc)2(bpy)]n I, and 1D {[Cu(pic)(OAc)(bpe)]·x(H2O)}n II, where Hpic = picolinic acid, bpy = 4,4'-bipyridine and bpe = 1,2-bis(4-pyridyl)-ethane; and the structural diversity is achieved due to the different ratio of components. Compound I crystallizes in the monoclinic space group P21/n: a = 8.3146(3), b = 6.6250(3), c = 23.3232(10) Å, β = 92.086(4)°. The Cu(II) ion adopts a N2O3 trigonal bipyramidal coordination provided by one N atom of bpy molecule, one N atom of pic anion, one O atom from monodentate AcO anion, and two O atoms of two bidentate-bridging pic residues. The Cu···Cu separations are 5.326 Å across pic and 11.095 Å across bpy. The exo-dentate-bridging bpy and pic ligands are responsible for 2D herringbone layer.figureCompound II crystallizes in the monoclinic space group P21/c: a = 45.460(2), b = 18.4612(8), c = 15.0365(6) Å, β = 91.738(4)°. The Cu(II) ions adopt N3O2 coordination cores derived from three N atoms of the bidentate-bridging bpe ligand and of pic residue, and two O atoms from terminal monodentate AcO and pic anions. The bpe bridge provides the zigzag-like 1D chain with the Cu···Cu separations in the range of 13.263 - 13.790 Å. This solid demonstrates the cumulative solvent uptake indicated by the 833 Å3 of the solvent accessible volume (or 6.6 % of total unit cell volume) after the guest molecules evacuation. The magnetic properties of I have been studied and will be discussed in term of known structure.