ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Photo- and Thermochromism. I. Infra-red Spectra of 1,3,3-Trimethylindoline-6'-nitro-8'- -bromobenzopyrylospirane Doped in Polyacrylonitril Thin Film

M. Leščinský

Department of Chemistry, Tokyo Institute of Technology, Ohokayama, Meguro-ku, Tokyo, Japan

Abstract:  The photo- and thermochromism of l,3,3-trimethylmdolme-6'-nitro-8'-bromobenzopyrylospirane doped in polyacrylonitril thin film was studied on the basis of changes of the infra-red spectra of complex solid solution. From reversible changes of „sensitive" absorption bands in connection with chemical changes in the course of spirane-merocyanine transformations, their probable assignment was made. From the changes of — N0₂ group vibrations, stereo rearrangement is expected.

Full paper in Portable Document Format: 233a194.pdf

Chemical Papers 23 (3) 194–197 (1969)