Nine coordination compounds have been synthesized from the self-assembly of the copper acetate,3,5-dimethylpyrazole,and carboxylate ligands at room temperature.All compounds were structurally characterized by different techniques including elemental analysis,IR spectra,TG,and single crystal X-ray diffraction analysis.The X-ray studies suggested that these complexes display mononuclear to trinuclear structures with tetrahedral(for compounds 1-8)or distorted square pyramidal(for compound 9)geometry around the copper ion.On the basis of X-ray crystallographic study the rich intra-and intermolecular noncovalent interactions such as classical hydrogen bonds,CH3-C,Cl…O,C-H…O,CH3…O,C-H…π,CH3-π,and π-π interactions are analyzed.The various nonbonding interactions in these compounds are responsible for different structures such as sheet,3D network,to 3D layer structure.