Synthesis and Characterization of Liquid Crystalline Perylene Diimides

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Several polyoxyethylene-substituted perylene-3,4,9,10-tetracarboxyldiimides have been synthesized and characterized. Relative to other known perylene diimide derivatives, all of the present compounds have much lower melting points and much greater solubility in common solvents. Most of these compounds possess liquid crystalline properties over a wide range of temperatures, some of them even atroom temperature and below. Some of the photophysical and self-organizing characteristics of these compounds are demonstrated, particularly with regard to the spontaneous formation of a highly crystalline black phase. Generalized correlations about the physical properties and the chemical structures of these new liquid crystalline compounds are discussed. Their unusual physical and photophysicalproperties have important implications for their use in a variety of electroactive and photovoltaic applications.
Original languageAmerican English
Pages (from-to)1309-1319
Number of pages11
JournalChemistry of Materials
StatePublished - 1998

NREL Publication Number

  • NREL/JA-450-23779


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