Two new 1D chain-typed coordination polymers, {[Co (HMPCA)(2) (4,4'-bpy)](2)center dot 5H(2)O} (1) and {[Ni(HMPCA)(2)(pyz)]center dot 5H(2)O}(n) (2) (H(2)MPCA=5-methyl-1H-pyrazole-3-carboxylic acid, 4,4'-bpy=4,4'-bipyridine, pyz=pyrazine), have been synthesized and characterized by elemental analysis, IR spectra, single crystal X-ray diffraction and thermogravimetric analysis: Complex 1 crystallizes in the orthorhombic system, space group Pccn, and 2 crystallizes in the monoclinic system, space group P2/c. In 1 and 2, metal ions are both located in an octahedral geometry, coordinated by two nitrogen atoms and two oxygen atoms from two HMPCA(-) anions, and linked by two nitrogen atoms from 4,4'-bpy ligands (1) and pyz ligands (2), respectively, forming a 1D chain typed coordination polymer. The thermal stability, luminescent properties and magnetic properties of them have also been investigated. CCDC: 1445391, 1; 1445392, 2.
