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Direct observations of polytypism in copper phthalocyanine

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Abstract

Extended regions of alternative molecular packing have been identified in single crystals ofβ-copper phthalocyanine by transmission electron microscopy. The interface separating the regions of transformed crystal are structurally equivalent to an array of partial dislocations on alternate (001) planes of theβ-phase which can be seen to migrate under the influence of the microscopes' electron beam. The energy difference between the two planes was approximately 0.1 kJ mol−1 at room temperature, considerably smaller than the value reported to be the difference between theα andβ phases.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of California, 95616, Davis, CA, USA

    D. G. Howitt

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  1. D. G. Howitt
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Howitt, D.G. Direct observations of polytypism in copper phthalocyanine. J Mater Sci 16, 1249–1256 (1981). https://doi.org/10.1007/BF01033839

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  • DOI: https://doi.org/10.1007/BF01033839

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