The first example of cofacial bis(dipyrrins)

Jude Deschamps; Yi Chang; Adam Langlois; Nicolas Desbois; Claude P. Gros; Pierre D. Harvey

doi:10.1039/c5nj03347k

Article dans une revue

The first example of cofacial bis(dipyrrins)

Jude Deschamps ¹ Yi Chang ² Adam Langlois ¹ Nicolas Desbois ² Claude P. Gros ^{2, *} Pierre D. Harvey ^{1, *}

* Auteur correspondant

1 UdeS - Département de chimie [Sherbrooke]

2 ICMUB - Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon]

Abstract : 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.

Keywords : molecular-orbital methods singlet energy transfers extended basis-sets valence basis-sets density-functional theory light-harvesting systems organometallic compounds excitation-energies transition-metals 2nd-row elements

Type de document :

Article dans une revue

Domaine :

Chimie

Liste complète des métadonnées

https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01427985
Contributeur : Icmub - Université de Bourgogne Connectez-vous pour contacter le contributeur
Soumis le : vendredi 6 janvier 2017 - 11:20:47
Dernière modification le : jeudi 16 décembre 2021 - 03:55:50

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