Photoresponsive coordination of stilbazoles to metalloporphyrins

Article abstract of DOI:10.1021/ja00069a033

The coordination of stilbazole derivatives to metalloporphyrins was investigated. 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 aluminum and zinc porphyrins with bulky peripheral substituents. The extent of coordination of 4 to metalloporphyrins could be changed by the trans → cis isomerization of 4 upon UV irradiation.