Structure of the photocolored 2-(2',4'-dinitrobenzyl)pyridine crystal: two-photon induced solid-state proton transfer with minor structural perturbation.
The X-ray structure of the blue phototautomer of 2-(2',4'-dinitrobenzyl)pyridine (DNBP) produced by two-photon excitation in a single crystal is the first direct evidence of a product in the DNBP photochromic family. A nitro-assisted proton transfer mechanism is attributed to the photocoloration of solid DNBP.
Naumov
Pance
P
Department of Chemistry and Materials Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan.
Sekine
Akiko
A
Uekusa
Hidehiro
H
Ohashi
Yuji
Y