Syntheses, Crystal Structures, Luminescence, and Magnetic Properties of Two Coordination Polymers Derived From Semirigid 1-Carboxymethyl-3,5-Dimethyl-1H-Pyrazole-4-Carboxylic Acid

摘要

Two coordination polymers, namely, {[Cd(cdpc)(hmt)(H2O)]H2O}(n) (1), and [Mn(Hcdpc)(2)(4, 4-bpy)(H2O)](n) (2), were constructed by synergistic assembly through the mixed-ligand synthetic strategy (H(2)cdpc = 1-carboxymethyl-3, 5-dimethyl-1H-pyrazole-4-carboxylic acid, hmt = hexamethylenetetramine, and 4, 4-bpy = 4, 4-dipyridine). Their structures were determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra, powder X-ray diffraction (PXRD), and thermogravimetric (TG) analyses. Single X-ray diffraction analysis reveals that complex 1 is a 2D 4-connected sql sheet, and complex 2 is an interesting 1D loop chain. The two complexes are further expanded to 3D supramolecular structure through non-covalent bonds. Besides, luminescent properties of two complexes in the solid state and magnetic property of 2 were also investigated.