Electronic and conformational features of meso-5-aminothien-2-ylporphyrins and its ferrocene coupled dyad and triads

• Physicochemical properties of ferrocene appended thienylporphyrins.
• Role of conformation on electronic effects of thienylporphyrins.
• Intramolecular electron transfer in ferrocene appended thienylporphyrins.

The role of conformation of the linker groups at the meso-position of meso-(5-aminothien-2-yl)porphyrins and its ferrocene coupled dyad and triads on the electronic, electrochemical and photophysical properties has been investigated. An efficient and facile methodology is adopted for the synthesis of 5-aminothien-2-ylporphyrins and their ferrocene appended dyad and triads. The possible nearly in-plane arrangement of the thien-2-yl ring with the porphyrin π-system influences the role of ferrocene moiety on the fluorescence behaviour of porphyrin macrocycle. The present study supports the presence of interaction between ferrocene and porphyrin units in their thien-2-yl bridged conjugates.

Physicochemical properties of ferrocene appended thienylporphyrins.Figure optionsDownload as PowerPoint slide