Tracking the Light-Induced Isomerization Processes and the Photostability of Spiropyrans embedded in the Pores of Crystalline Nanoporous MOFs via IR Spectroscopy - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Photochemical & Photobiological Sciences Année : 2020

Tracking the Light-Induced Isomerization Processes and the Photostability of Spiropyrans embedded in the Pores of Crystalline Nanoporous MOFs via IR Spectroscopy

Résumé

The embedment of photochromic dyes into porous host matrices has attracted increasing interest in recent years. Especially the class of spiropyrans has been considered because of its outstanding photochromic and solvatochromic response. We herein present a comprehensive infrared spectroscopic characterization of the photoresponse and photostability of a nitro-substituted spiropyran "SP-Nitro" (namely 1,3,3-trimethylindolino-6´-nitrobenzopyrylospiran) non-covalently attached to different crystalline nanoporous MOF (metal-organic framework) host lattices. The TTC mesomeric form of SP-Nitro has been found to be preferably generated upon UV light exposure inside the different MOF hosts. Additionally, the excited isomer was found to be stable for prolonged irradiation times of 1-1.5 h.

Domaines

Chimie Matériaux
Fichier principal
Vignette du fichier
IR_manuscript_Schwartz_et_al_revised_manuscript.pdf (947.03 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02981044 , version 1 (27-10-2020)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Heidi Schwartz, Dominik Schaniel, Uwe Ruschewitz. Tracking the Light-Induced Isomerization Processes and the Photostability of Spiropyrans embedded in the Pores of Crystalline Nanoporous MOFs via IR Spectroscopy. Photochemical & Photobiological Sciences , 2020, 19 (10), pp.1433-1441. ⟨10.1039/D0PP00267D⟩. ⟨hal-02981044⟩
41 Consultations
174 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More