Abstract: | The photostabilities and syntheses of 2,2′-bis(o-hydroxyphenyl)-5,5′-bipyrimidine, 6,6′-bis(o-hydroxyphenyl)-3,3′-bipyridine and 3,8-bis(o-hydroxyphenyl)-4,7-phenanthroline are discussed. The syntheses of parent compounds lacking the o-hydroxy groups are also described. |