Title :

Femto/Picosecond Transient Absorption Study of Perimidinespirocyclohexadienone Derivatives Ring-Opening Dynamics.

Author(s) :

Metelitsa, A. [Auteur]
Poizat, Olivier [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Buntinx, Guy [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Dorogan, I. [Auteur]

Journal title :

ChemPhysChem

Abbreviated title :

Chemphyschem

Publication date :

2020-11-11

ISSN :

1439-7641

English keyword(s) :

time-resolved spectroscopy
ring-opening reaction
photochromism
isomerisation
density functional calculations

HAL domain(s) :

Chimie/Chimie théorique et/ou physique

English abstract : [en]

The ring-opening dynamics of perimidinespirocyclohexadienone derivatives has been studied by means of time-resolved spectroscopy in cyclohexane and acetonitrile solutions. It has been established that molecular isomerisation ...
Show more >The ring-opening dynamics of perimidinespirocyclohexadienone derivatives has been studied by means of time-resolved spectroscopy in cyclohexane and acetonitrile solutions. It has been established that molecular isomerisation leading to the open isomer occurs against the background of the S1-S0 internal conversion of the cyclic form. In addition, the features of the observed spectral changes in the cyclohexane made it possible to distinguish formation of the photoproduct in the T1 state and its relaxation via intersystem crossing to the singlet ground state. The corresponding assignments for transient absorption bands were performed on the basis of TD-DFT calculations.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Submission date :

2024-02-28T22:51:33Z
2024-03-12T15:42:37Z