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Beiträge zur Chemie der Pyrrolpigmente, 1. Mitt.: Der induzierte Circulardichroismus einiger Pyrromethenderivate in cholesterischer Mesophase

On the chemistry of pyrrole pigments, I.: The cholesteric mesophase-induced circular dichroism of some dipyrromethene derivatives

  • Organische Chemie und Biochemie
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Abstract

The electron absorption spectra of some symmetrically substituted alkyl-dipyrromethene derivatives were analyzed by means of a liquid-crystal-induced circular dichroism technique. The “main band” (440 nm) was found to be polarized parallel, whereas all short-wavelength bands (including one hidden by the main band) are polarized perpendicular to the “long” axis of the molecule.

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Authors and Affiliations

  1. Lehrkanzel für Organische Chemie der Universität Wien, Währinger Straße 38, A-1090, Wien, Österreich

    H. Falk, O. Hofer & H. Lehner

Authors
  1. H. Falk
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  2. O. Hofer
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  3. H. Lehner
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Falk, H., Hofer, O. & Lehner, H. Beiträge zur Chemie der Pyrrolpigmente, 1. Mitt.: Der induzierte Circulardichroismus einiger Pyrromethenderivate in cholesterischer Mesophase. Monatshefte für Chemie 105, 169–178 (1974). https://doi.org/10.1007/BF00911302

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  • DOI: https://doi.org/10.1007/BF00911302

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