Figure 9

Photodecomposition of DPBF. Photodecomposition of DPBF in DMF/H₂O (9:1) by singlet oxygen generated by the photosensitizers after irradiation with white light filtered through a cut-off filter for wavelengths < 540 nm (9 mW cm^-2). Tetra-Py⁺-Me (pink filled circle), Tri-Py⁺-Me-PF (yellow filled triangle), Tri-Py⁺-Me-CO₂Me (light blue open triangle), Tri-Py⁺-Me-CO₂H (red open square), Di-Py⁺-Me-Di-CO₂H opp (brown filled diamond), Di-Py⁺-Me-Di-CO₂H adj (violet star), Mono-Py⁺-Me-Tri-CO₂H (green open circle).