Figure S1. FT-IR spectra of ligand FMIMBMOP and its complexes 1, 2 and 3.

Fig. S2. UV-Vis spectra of ligand FMIMBMOP and complexes 1, 2 and 3.

Fig. S3. 1H-NMR spectrum of ligand FMIMBCP.

Fig. S4. 13C-NMR spectrum of ligand FMIMBCP.

Fig. S5. Mass spectra of ligand FMIMBMOP and complexes 1, 2 and 3.

Fig. S6. Thermal analysis curves of complexes 1, 2 and 3.

Fig. S7. Proposed structure of complexes 1, 2 and 3.

Fig. S8. Space filling structure of proposed complexes 1, 2 and 3.

Table S1. IR absorption frequencies (cm-1) of FMIMBCP Schiff base and its metal complexes (1−3).

Table S2. Electronic spectral data of FMIMBCP Schiff base and its metal complexes (1−3).

Table S3: Rate equations.

Table S4. The antibacterial activity values of the investigated compounds.