One new Ni(II) complex with the sexidentate (N2O4) bis-Schiff base ligand was synthesized.
The crystal structure of the Ni(II) complex was determined.
DFT study including FMO, MEP and HOMO-LUMO energy gap analysis was described.
The photocatalytic activities of the Ni(II) complex for the degradation of MB, RhB and MV were screened.