M. Suzuki et al., PHOTO-CHROMISM AND THERMO-CHROMISM OF A RUTHENIUM(II) COMPLEX AND VIOLOGEN-CONTAINING POLYMER FILM, Chemical communications, (21), 1997, pp. 2061-2062
A ruthenium(II) complex and a viologen-containing partially quaternize
d poly(1-vinylimidazole) film demonstrates both photochromism and ther
mochromism as a result of photosensitized and thermosensitized charge
separations.