Dithienylhexafluorocyclopentene with (R)- or (S)-N-phenylethylamide substituents formed rod-like and 0.2–1.0 µm-thick plate-like crystals by sublimation; upon UV irradiation, the crystals bent concavely to the incident light and finally rolled crystals were obtained; the bent crystals were reconverted to flat crystals by visible light irradiation.
二苯并呋喃六
氟环戊烯与(R)或(S)-N-苯乙基酰胺取代基通过升华形成棒状和0.2-1.0微米厚的板状晶体;在紫外光照射下,晶体向入射光弯曲凹入,最终得到卷曲的晶体;弯曲的晶体通过可见光照射重新转化为扁平晶体。