Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.246, 147-149, 1994
Photochromism by the Way of Intramolecular Hydrogen-Transfer in -N-H-N-Bond
The intramolecular hydrogen bonding N-H ... N between two heterocycles substituted on an ethylenyl linkage brought about photochromic behavior in a transient way exhibiting ground state transient absorption of the resulting tautomeric form.