Studies on Aromatic Trichromophore Systems Incorporating Anthracene Moieties. II. Crystal Structures of 2-(9-Anthryl)-1-(9-anthrylmethyl)ethyl 2-(9-Phenanthryl)-ethyl Succinate (A2PHEN) and 2-(9-Anthryl)-1-(9-anthrylmethyl)ethyl Methyl Succinate (A2SC) and Their Fluorescence in the Solid State

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ID: 268273
1994
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Abstract
The structures of 2-(9-anthryl)-1-(9-anthrylmethyl)ethyl 2-(9-phenanthryl)ethyl succinate (A2PHEN) and 2-(9-anthryl)-1-(9-anthrylmethyl)ethyl methyl succinate (A2SC) have been determined by X-ray diffraction, and the molecular fluorescence of the crystals has been established. The two crystals are monoclinic. A2PHEN: C 2/c, a 39.47(1), b 9.718(2), c 19.924(8) Ǻ; β 97.81(3)°; R 0.036 for 2903 unique reflections. A2SC: P 21/c, a 16.248(2), b 10.325(2), c 18.052(2) Ǻ. β 114.20(3)°; R 0.044 for 2586 unique reflections. For both structures, the bisanthracene moiety and a large part of the ester chain show similar conformations. The crystal cohesion is due to intermolecular π overlapping between one of the anthracene components of the bichromophore moiety and to numerous van der Waals interactions. No intramolecular interactions between the phenanthrene and the anthracene moieties are observed in A2PHEN. The fluorescence emissions of A2PHEN and A2SC are of excimer type, and correlate well with the intermolecular interactions between the anthracene rings.
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cotrait1994australianstudies Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors M Cotrait;P Marsau;L Kessab;S Grelier;A Nourmamode;A Castellan;
Journal australian journal of chemistry
Year 1994
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