Table S1. Data of thermal gravimetric analysis (TGA) of the metal complexes (1, 3, 4, and 5) with H2L

Table S2: The bond lengths and bond angles of H2L, complex 1 and 2

Table S3: The bond lengths and bond angles of complex 3, 4 and 5

Table S4: The energetic properties of the ligand (H2L) and its complexes 1-6

Table S5. Antimicrobial activities of H2L and its metal complexes (1-7)

Table S6. The in-vitro antitumor activity (IC50) of H2L and complexes 1-7 against HepG-2

Figure S1. FT-IR spectra of the Co(II), Ni(II), and Cd(II) complexes

Figure S2. XRD spectral patterns of Cr(III), Fe(III), Co(II), Ni(II), Cu(II), and Cd(II) complexes

Figure S3. TEM images of Cr(III) complex 1 (A), Fe(III) complex 3 (B), Co(II) complex 4 (C), and Ni(II) complex 5 (D)

Figure S4. Optimized molecular structure of complexes 2-6

Figure S5. HOMO and LUMO Optimized molecular structure of ligand and its metal complexes 1-6