The synthesis, structure, and photochemical behavior of the trans isomers of 4-(N-phenylamino)stilbene (1c), 4-(A methyl-N-phenylamino)stilbene (1d), 4-(NN-diphenylamino)stilbene (le), and 4-(N-(2,6dimethylphenyl)amino)stilbene (1f) are reported and compa