Discotic Mesophases of the Metal-Free Derivative of Octa (Dodecyloxymethyl) Phthalocyanine
- 1 October 1983
- journal article
- liquid crystals
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 100 (3-4) , 275-284
- https://doi.org/10.1080/00268948308075357
Abstract
The mesomorphic behavior of octa (dodecyloxymethyl) phthalocyanine was studied with DSC, optical microscopy, and X-ray diffraction. Two discotic mesophases were observed as a function of temperature. Their structure corresponds to the piling up of the flat molecules in columns which are laterally assembled according to a two-dimensional hexagonal lattice (D = 31.2 Å). The repeat distance of the molecules along the columns was found to be of about 4.5 Å. The low-temperature discotic phase showed an extra sharp reflection at 20.5 Å, indicating a further ordering of the molecules.Keywords
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