Transition metal complexes with phosphine oxide appended aza-macrocycles – effects of ring size and denticity

Key Points

• The research aims to investigate how the ring size and denticity of phosphine oxide appended aza-macrocyclic ligands influence their behavior in transition metal complexes.
• Synthesis of new phosphine oxide appended aza-macrocyclic ligands L1 and L3.
• Use of Bn-tacn and Bn-cyclen in ligand preparation.
• Characterization of ligands to determine yield and properties.
• L1 and L3 were synthesized successfully with good yields.
• Differences in stability and reactivity of transition metal complexes were observed based on denticity and ring size.