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Liquid Crystals

Discotic Mesogens Possessing an Electrical Dipole Moment Perpendicular to the Molecular Plane: Synthesis and Mesomorphic Properties

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Pages 115-120 | Received 20 Jan 1987, Accepted 01 Apr 1987, Published online: 28 Mar 2007
 

Abstract

Out-of-plane complexes (Pb11 and Sn11) of octasubstituted phthalocyanine derivatives have been prepared. They are characterized by a large dipole moment perpendicular to the macrocycle plane. The lead derivatives are shown to form columnar liquid crystals as characterized by optical microscopy, differential scanning calorimetry and X-ray diffraction at small angle.

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