Facile One-pot Synthesis of Triply-Fused, Fluorescent Chlorin-porphyrin Heterodimers with Near-IR Absorption: Impact of π-Conjugation on Optical Properties

Key Points

• The study aims to explore the synthesis and optical characteristics of chlorin-porphyrin heterodimers with a focus on π-conjugation effects.
• Utilized a one-pot synthesis approach for the creation of dizinc(II) chlorin-porphyrin heterodimers.
• Characterized both the dication diradical and neutral forms of the heterodimer.
• Examined optical properties under near-infrared absorption.
• Successfully synthesized stable dication diradical of the heterodimer with enhanced fluorescence.
• Demonstrated significant optical property variations resulting from π-conjugation.
• Found that the near-infrared absorption improves with structural modifications.