In-situ nitration and syntheses of new Co(II) and Ni(II) complexes assembled from 3-methyl-1-phenyl-5-pyrazolone and cobalt or nickel nitrate under solvothermal conditions

Two new complexes have been solvothermally synthesized. The ligand was generated in-situ and the plausable nitration mechanism of 3-methyl-1-phenyl-5-pyrazolone was discussed. Single crystal X-ray diffraction of 1 reveals that 1 was connected to form 2D network by hydrogen bonds.