Quantum-Classical Protocol for Efficient Characterization of Absorption Lineshape and Fluorescence Quenching upon Aggregation: The Case of Zinc Phthalocyanine Dyes - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Chemical Theory and Computation Année : 2023

Quantum-Classical Protocol for Efficient Characterization of Absorption Lineshape and Fluorescence Quenching upon Aggregation: The Case of Zinc Phthalocyanine Dyes

Daniel Aranda
Frederic Lerouge
Yann Bretonniere
Ilke Gürol
  • Fonction : Auteur
Fabienne Dumoulin
Javier Cerezo
Fabrizio Santoro
  • Fonction : Auteur

Résumé

A quantum-classical protocol that incorporates Jahn−Teller vibronic coupling effects and cluster analysis of molecular dynamics simulations is reported, providing a tool for simulations of absorption spectra and ultrafast nonadiabatic dynamics in large molecular photosystems undergoing aggregation in solution. Employing zinc phthalocyanine dyes as target systems, we demonstrated that the proposed protocol provided fundamental information on vibronic, electronic couplings and thermal dynamical effects that mostly contribute to the absorption spectra lineshape and the fluorescence quenching processes upon dye aggregation. Decomposing the various effects arising upon dimer formation, the structure− property relations associated with their optical responses have been deciphered at atomistic resolution.

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Dates et versions

hal-04304606 , version 1 (24-11-2023)

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Mohammad Aarabi, Daniel Aranda, Samira Gholami, Santosh Kumar Meena, Frederic Lerouge, et al.. Quantum-Classical Protocol for Efficient Characterization of Absorption Lineshape and Fluorescence Quenching upon Aggregation: The Case of Zinc Phthalocyanine Dyes. Journal of Chemical Theory and Computation, 2023, 19 (17), pp.5938-5957. ⟨10.1021/acs.jctc.3c00446⟩. ⟨hal-04304606⟩
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