Y. Iseki et al., PHOTORESPONSIVE COORDINATION OF STILBAZOLES TO METALLOPORPHYRINS, Journal of the American Chemical Society, 115(16), 1993, pp. 7313-7317
The coordination of stilbazole derivatives to metalloporphyrins was in
vestigated. Among the stilbazoles examined, a stilbazole with a bulky
group such as 4-phenyl-3-stilbazole (4) showed considerable difference
between the trans and cis isomers in its ability to coordinate to alu
minum and zinc porphyrins with bulky peripheral substituents. The exte
nt of coordination of 4 to metalloporphyrins could be changed by the t
rans --> cis isomerization of 4 upon UV irradiation.