In situ photoswitching of spirorhodamine isomers in solid state

J. ALDAY; M. M. TORINO; L. ALVAREZ; M. G. LAGORIO; C. H. IRIART; S. SUÁREZ

ACTA CRYSTALLOGRAPHICA A

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2021 vol. 77 p. 1 - 1

0108-7673

At present, the functional materials structurally switchable by stimuli such as heat, the addition of cations, changes of pH, pressure, or light are the motive of innumerable studies to be ideal models to investigate the relation structure-function and new properties derived from that change. In this work, we studied a family of spirorhodamines (SRAs) in solid-state photochemical reactions. These arephotochromic molecules with a switching mechanism based on the differences in the fundamental electronic state between isomers.[1]It involves changes in the molecule structure and is thermally reversible.[2,3] In this work, assuming as the hypothesis that in solidphase the permanence time in the optically active isomer is associated with its structural characteristics, a family of compounds modifying the substituent was synthesized.