Tuning the reactivity of an osmium–peroxo unit by modulating metallacycle aromaticity

Key Points

• The central aim is to investigate how changing the aromaticity of a metallacycle affects the reactivity of an osmium–peroxo unit.
• Examined osmium–peroxo units supported by metallacycles with varying degrees of aromaticity.
• Conducted reactivity tests to measure protonation rates of complexes.
• Analyzed product formation from the protonated osmium–peroxo units.
• Diminished aromaticity leads to noticeable increases in protonation rates.
• Less stable osmium–peroxo complexes convert selectively to desired products.