Synthesis, crystal structure, and catalytic property of a new Co(II) coordination polymer based on 1,3,5-benzenetricarboxylate ligand

A new Co(II) coordination polymer, namely [Co₃(btc)₂(H₂O)₂]_n (1H₃btc = 1,3,5-benzenetricarboxylic acid), was obtained by the hydrothermal reaction of Co(NO₃)₂·6H₂O and H₃btc. Single crystal X-ray diffraction analysis revealed that compound 1 crystallizes in the monoclinic C2/c space group and features a three-dimensional (3D) spatial framework based on 1D –[Co(II)–(COO)₂–Co(II)]_n– chain motifs. The catalytic activity of compound 1 as heterogeneous catalyst for degradation of methyl orange (MO) in a Fenton-like process was also investigated.