A porphyrinâperinaphthothioindigo conjugate having two-photon absorption cross-sections of â¼2000 GM and â¼700 GM for trans- and cis-isomers, respectively, was synthesized and exhibited clear photochromic behavior upon one-photon and two-photon excitation.
一种
卟啉-
萘并
噻吩靛蓝共轭物,其反式和顺式异构体的双光子吸收截面分别为小于2000 GM和小于700 GM,经合成后,在单光子和双光子激发下表现出明显的光致变色行为。