Transient Absorption Investigation of the Photophysical Properties of Thiophene Linked [2H]-Chromenes

B. Moine Laboratoire de Spectrochimie Infrarouge et Raman, Centre d'Etudes et de Recherches Lasers et Applications, Université des Sciences et Technologies de Lille, Cedex, FranceCorrespondence[email protected]

G. Buntinx Laboratoire de Spectrochimie Infrarouge et Raman, Centre d'Etudes et de Recherches Lasers et Applications, Université des Sciences et Technologies de Lille, Cedex, France

O. Poizat Laboratoire de Spectrochimie Infrarouge et Raman, Centre d'Etudes et de Recherches Lasers et Applications, Université des Sciences et Technologies de Lille, Cedex, France

M. Frigoli Groupe de Chimie Organique et Matériaux Moléculaires, Université de la Méditerranée, Faculté des Sciences de Luminy, Marseille Cedex, France

C. Moustrou Groupe de Chimie Organique et Matériaux Moléculaires, Université de la Méditerranée, Faculté des Sciences de Luminy, Marseille Cedex, France

A. Samat Groupe de Chimie Organique et Matériaux Moléculaires, Université de la Méditerranée, Faculté des Sciences de Luminy, Marseille Cedex, France

ABSTRACT

The photophysical and photochemical properties of a bi-thiophene linked 2H-chromene are investigated by femtosecond and nanosecond transient absorption spectroscopy. The spectral characteristics and dynamics of the lowest excited singlet and triplet states are determined. The ring-opening reaction responsible for the photochromism is observed to occur in the S₁ state with a time constant of about 150 ps in acetonitrile.

Keywords:

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Transient Absorption Investigation of the Photophysical Properties of Thiophene Linked [2H]-Chromenes

Information for

Open access

Opportunities

Help and information

Transient Absorption Investigation of the Photophysical Properties of Thiophene Linked [2H]-Chromenes

ABSTRACT

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature