1284215-17-3Relevant academic research and scientific papers
Synthesis and spectroscopic properties of photochromic dithienylethene-functionalized subphthalocyanine conjugate
Shi, Maohu,Chen, Jingzhi,Shen, Zhen
, p. 1082 - 1089 (2016)
A subphthalocyanine-dithienylethene dyad has been synthesized and characterized by 1H-, 13C-NMR, HR-MS, UV-visible and emission spectroscopy. The results show that photoinduced isomerization of dithienylethene moiety from close-form to opened form can be achieved under visible light using subphthalocyanine as a light-harvesting unit and the fluorescence properties of subphthalocyanine could be modulated by the isomerization state of the dithienylethene moiety.
Synthesis and characterization of thermally irreversible photochromic cholesteric liquid crystals
Rameshbabu, Krishnamurthy,Urbas, Augustine,Li, Quan
experimental part, p. 3409 - 3415 (2011/06/21)
Three thermally irreversible photochromic chiral liquid crystal dithienylcyclopentenes were found not only to be able to self-organize into a phototunable helical superstructure, i.e., cholesteric phase, but also to be able to induce a photoresponsive helical superstructure in an achiral liquid crystal host. The cholesteric phase in the three chiral compounds went into a glassy phase without crystallization upon cooling. All the materials exhibited reversible photochromism with thermal stability in both solution and thin film, and their fluorescence was shifted to longer wavelength upon UV irradiation while the shifted fluorescence was recovered upon visible light irradiation. The enhanced fluorescence emission with the addition of fluoride anions was observed, and its reverse process happened with the addition of an equivalent proton. ? 2011 American Chemical Society.
