6533b7d0fe1ef96bd125b9e0
RESEARCH PRODUCT
The first example of cofacial bis(dipyrrins)
Yi ChangAdam LangloisJude DeschampsNicolas DesboisClaude P. GrosPierre D. Harveysubject
010402 general chemistryPhotochemistry01 natural sciences[ CHIM ] Chemical SciencesCatalysisTransition metalexcitation-energiesmolecular-orbital methodsorganometallic compoundsMaterials Chemistry[CHIM]Chemical Sciencessinglet energy transfersdensity-functional theoryvalence basis-setsGroup 2 organometallic chemistryQuenching (fluorescence)010405 organic chemistryChemistryGeneral ChemistryTime-dependent density functional theorytransition-metalsFluorescence0104 chemical scienceslight-harvesting systems2nd-row elementsDensity functional theoryextended basis-setsdescription
International audience; Two series of cofacial bis(dipyrrins) were prepared and their photophysical properties as well as their bimolecular fluorescence quenching with C-60 were investigated. DFT and TDDFT computations were also performed as a modeling tool to address the nature of the fluorescence state and the possible inter-chromophore interactions. Clearly, there is no evidence for such interactions and the bimolecular quenching of fluorescence, in comparison with mono-dipyrrins, indicates that C-60-bis(dipyrrin) contacts occur from the outside of the "mouth" of the cofacial structure.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-03-24 |