HOW DOES ELECTRON DONATING LIGAND AND eLECTRON WITHDRAWINDG GROUP AFFECT THE OXIDIZABILITY OF cO(II) TO CO(III) SALEN COMPLEXES?
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Electron-donating ligands and electron-withdrawing groups have a significant impact on the oxidizability of Co(II) to Co(III) salen complexes. The introduction of electron-donating groups, such as methoxy (-OCH3), enhances the electrochemical activity of the salen-type Schiff base during the electropolymerization process, leading to higher doping levels and charge-transfer abilities in the resulting polymer . On the other hand, the presence of electron-withdrawing groups, like chloro (-Cl), results in weaker electrochemical capacity characteristics in the polymer . Additionally, the Co(III) salen complex immobilized on various substrates exhibits superior catalytic activity in oxidation reactions of sulfides and alcohols, with the ligands playing a crucial role in the catalyst's stability and efficiency .
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| Electron-donating ligands enhance oxidizability by stabilizing Co(III) in Co(II) salen complexes, while electron-withdrawing groups decrease oxidizability due to destabilization of Co(III). | |
9 Citations | Electron-donating groups enhance oxidizability, leading to higher doping levels and electrochemical capacities in Co(II) to Co(III) salen complexes, as shown in the study on Ni salen-type polymers. |
| Electron-donating ligands facilitate Co(II) to Co(III) oxidation, while electron-withdrawing groups hinder it in octahedral Co(III) salen complexes, impacting axial ligand release upon reduction. | |
| Electron-donating ligands enhance Co(II) to Co(III) oxidation, improving catalytic activity. Electron-withdrawing groups may hinder this process, affecting the oxidizability of Co(II) salen complexes. |
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