Merrifield Resin-based Imine Compounds and their Co(II), Ni(II) and Cu(II) Complexes: Characterization and Study of their Catalytic Activities

In the current study, three new polymer- attached imine ligands (PS-L1—PS-L3) were synthesized from the reaction of chloromethyl polystyrene and the imine compounds (H2L1—H2L3). The Co2+, Ni2+ and Cu2+ complexes of the polymer- attached ligands were prepared and characterised by the spectroscopic procedures. The redox and photophysical behaviours of the free imine ligands were investigated in solutions. Polymer supported ligands (PS-L1—PS-L3) and their Co2+, Ni2+ and Cu2+ complexes show good high thermal stabilities. Alkane-oxidation and alkene-epoxidation studies of solid supported metal complexes were carried out by microwave method. In the oxidation studies of the cyclohexane (CYH) and cyclooctane (C8H16) (CYON), the complexes showed good catalytic conversion rate (up to 90%) but with lower selectivity