Introduction of bis-Discotic and bis-Calamitic Mesogenic Addends to C₆₀
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Colleges, School and Institutes
The synthesis and characterization of four C-60 Bingel cyclopropanation adducts incorporating bis-biphenylene (three adducts) and bis-triphenylene (one adduct) moieties are described. The thermal analysis (POM and DSC) of these materials reveals that they are not liquid crystalline. However, two of the precursor bis-biphenylene malonate esters possess monotropic mesophases. Furthermore, each of the corresponding C-60 adducts is miscible in the melts of the precursor malonate ester, and at low dopings, retains the liquid crystalline monotropic mesophases of the precursor.
|Number of pages||8|
|Publication status||Published - 1 Apr 2002|