80.0 75 70 FRL4 65 60 %T 55 50 45 40.0 4000.0 3000 2000 1500 cm-1 Fig.1: Fig.I: FT-IR FT-IR Spectrum Spectrum of of the the ligand ligand HL HL Fig. II: 1HNMR Spectrum of the ligand HL 1000 450.0 Fig. III: Mass Spectrum of the ligand HL Fig. IV: 1HNMR Spectrum of the Zn(II) complex Fig. V: Powder XRD pattern of the ligand HL 700 600 counts 500 400 300 200 100 0 10 20 30 40 50 60 70 2 Theta Fig. VI: Powder XRD pattern of the Co(II) complex 80 70.0 65 60 55 50 Co[FRL4] 45 %T 40 35 30 25 20.0 4000.0 3000 2000 1500 1000 500 350.0 1000 500 350.0 cm-1 Fig. VII: IR Spectrum of Co(II) complex 63.5 60 55 50 45 Ni[FRL4] 40 %T 35 30 25 20 15 10.0 4000.0 3000 2000 1500 cm-1 Fig. VIII: IR Spectrum of Ni(II) complex 70.0 65 60 55 50 45 40 35 %T Cu[FRL4] 30 25 20 15 10 5 0.0 4000.0 3000 2000 1500 1000 500 350.0 500 350.0 cm-1 Fig. Fig. IX: 7: IR IR Spectrum Spectrum of of Cu(II) Cu(II) complex complex 75.0 70 65 60 %T Zn[FRL4] 55 50 45 42.0 4000.0 3000 2000 1500 cm-1 Fig. X: IR Spectrum of Zn(II) complex 1000 76.0 70 65 Cd[FRL4] 60 %T 55 50 45 40 35.0 4000.0 3000 2000 1500 1000 500 350.0 cm-1 Fig. XI: IR Spectrum of Cd(II) complex 75.0 70 65 60 Hg[FRL4] 55 50 45 %T 40 35 30 25 20 15 10.0 4000.0 3000 2000 1500 cm-1 Fig. XII: IR Spectrum of Hg(II) complex 1000 500 350.0