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RESEARCH PRODUCT
Near-infrared emissive bacteriochlorin-diketopyrrolopyrrole triads: Synthesis and photophysical properties
Pritam MondalLéo BucherFlavien PonsotClaude P. GrosNicolas DesboisAnthony RomieuAnthony RomieuMathieu Berthelotsubject
Energy-transfer triadMaterials science[CHIM.ORGA]Chemical Sciences/Organic chemistryProcess Chemistry and TechnologyGeneral Chemical EngineeringEnergy transferNear-infrared spectroscopyRational design02 engineering and technologyChromophoreFluorophore010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistry01 natural sciences7. Clean energyFluorescence0104 chemical sciencesNearinfrared fluorescence HighlightsEffective energyExcited state0210 nano-technologyBacteriochlorinDiketopyrrolopyrroledescription
International audience; The synthesis of unprecedented energy transfer triads containing a near-infrared (NIR) emissive bacteriochlorin subunit and two diketopyrrolopyrrole (DPP) moieties linked to each other via ethynyl or zero-carbon spacers is presented. Their optical and fluorescence properties were determined in CHCl3 and toluene. These photophysical measurements highlight the ability of DPP scaffold to act as an effective energy donor, which once excited in the range 450-550 nm resulting nearly exclusively NIR emission of hydroporphyrin (ETE > 96%). Since DPP dyes are valuable structurally tunable fluorophores that may be used in the construction of high-performance multicomponent photoactive systems, their spectral compatibility with bacteriochlorin chromophore demonstrated through this work, is an important first step toward the rational design of novel and innovative hybrid NIR fluorophores inspired by (bacterio)chlorophylls and suitable for biomedical applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-01-01 |