Vi. Minkin et al., PHOTOCHROMIC BEHAVIOR OF NON-TRANSITION METAL CHELATE COMPLEXES OF SALICYLALDIMINES, Mendeleev communications, (3), 1993, pp. 102-104
Bis(N-alkylsalicylaldiminato)zinc(II) and the beryllium(II) complexes
1, as well as 5,6-benzo-1,3,2-oxazaborines 2, display photochromic beh
aviour in solution, while undergoing thermally-irreversible photocolor
ation reactions in bulky amorphous films.