Synthesis and Studies of New Fluorescein‐Porphyrin Dyads: A Theoretical and Experimental Approach

Abstract

Synthesis of two new zinc porphyrin fluorescein dyads are reported here. The two chromophoric units are covalently linked by alkane or alkyne bond, which provides various degrees of flexibility. Conformational analysis as photophysical properties were performed both experimentally (NOESY experiments, lifetimes, ROS production…) and theoretically (DFT and TD‐DFT calculations). Comparison with triazole linker described in a precedent study highlighted that linkage nature determine conformational structure (folding/linearity) but do not significantly modify energy transfer between the two moieties involved in dyads.

Enhanced Energy Transfer in the Co‐assembly of Donor‐Receptor Polymer Nanoparticles: An Artificial Light Capture System to Trigger Effective Photodynamic Antibacterial Processes

“…For example, the Stéphanie Leroy‐Lhez group reported the synthesis of two new zinc‐porphyrin fluorescein ditheses. The two coloring units are covalently connected by alkane or alkyne bonds, providing varying degrees of flexibility [11] . Here, we report the design, synthesis, photophysical characterization of fluorescein‐porphyrin FRET probe for three artificial light‐harvesting systems, namely THPP‐C4‐YGS, THPP‐C6‐YGS, THPP‐C8‐YGS (Figure 1).…”

“…The two coloring units are covalently connected by alkane or alkyne bonds, providing varying degrees of flexibility. [11] Here, we report the design, synthesis, photophysical characterization of fluorescein-porphyrin FRET probe for three artificial light-harvesting systems, namely THPP-C4-YGS, THPP-C6-YGS, THPP-C8-YGS (Figure 1). And their photophysical properties were determined by…”