Phenylimino Indolinone: A Green-Light-Responsive T-Type Photoswitch Exhibiting Negative Photochromism

Stefano Crespi*, Nadja A. Simeth, Mariangela Di Donato, Sandra Doria, Charlotte N. Stindt, Michiel F. Hilbers, Ferdinand L. Kiss, Ryojun Toyoda, Sammo Wesseling, Wybren Jan Buma, Ben L. Feringa, Wiktor Szymański

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

5 Citaten (Scopus)
1 Downloads (Pure)


Imines are photoaddressable motifs useful in the development of new generations of molecular switches, but their operation with low-energy photons and control over isomer stability remain challenging. Based on a computational design, we developed phenylimino indolinone (PIO), a green-light-addressable T-type photoswitch showing negative photochromism. The isomerization behavior of this photoactuator of the iminothioindoxyl (ITI) class was studied using time-resolved spectroscopies on time scales from femtoseconds to the steady state and by quantum-chemical analyses. The understanding of the isomerization properties and substituent effects governing these photoswitches opens new avenues for the development of novel T-type visible-light-addressable photoactuators based on C=N bonds.

Originele taal-2English
Pagina's (van-tot)25290-25295
Aantal pagina's5
TijdschriftAngewandte Chemie - International Edition
Nummer van het tijdschrift48
Vroegere onlinedatum5-okt-2021
StatusPublished - 22-nov-2021

Citeer dit