A protocol for determining cage-escape yields using nanosecond transient absorption spectroscopy

Alexia Ripak; Simon De Kreijger; Benjamin Elias; Ludovic Troian-Gautier

doi:10.1016/j.xpro.2023.102312

A protocol for determining cage-escape yields using nanosecond transient absorption spectroscopy

STAR Protoc. 2023 May 13;4(2):102312. doi: 10.1016/j.xpro.2023.102312. Online ahead of print.

Authors

Alexia Ripak¹, Simon De Kreijger¹, Benjamin Elias¹, Ludovic Troian-Gautier²

Affiliations

¹ Université catholique de Louvain (UCLouvain). Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348 Louvain-la-Neuve, Belgium.
² Université catholique de Louvain (UCLouvain). Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348 Louvain-la-Neuve, Belgium. Electronic address: ludovic.troian@uclouvain.be.

Abstract

Here, we present a protocol for the determination of cage-escape yields following excited-state electron transfer between a photosensitizer and a quencher. We describe steps for determining changes in molar absorption coefficient of the different oxidation states via photolysis experiments and the percentage of reacted species via steady-state or time-resolved spectroscopy. We then detail measurement of the amount of formed product via nanosecond transient absorption spectroscopy. For complete details on the use and execution of this protocol, please refer to Ripak et al. (2023).¹.

Keywords: Chemistry; Energy; Material Sciences.