4,4-Diphenyl-2,5-cyclohexadienone: Four Polymorphs and Nineteen Crystallographically Independent Molecular Conformations

4,4-Diphenyl-2,5-cyclohexadienone: Four Polymorphs and Nineteen Crystallographically Independent Molecular Conformations

Small yet subtle conformational changes resulting from the correlated rotation of the geminal phenyl rings in the title compound lead to different crystal packing arrangements and thus different X‐ray crystal structures (the four space groups are given in the picture). This provides the simultaneous...

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Veröffentlicht in:Angewandte Chemie International Edition 2002-10, Vol.41 (20), p.3848-3851
Hauptverfasser: Kumar, V. S. Senthil, Addlagatta, Anthony, Nangia, Ashwini, Robinson, Ward T., Broder, Charlotte K., Mondal, Raju, Evans, Ivana R., Howard, Judith A. K., Allen, Frank H.
Format: Artikel
Sprache:eng
Schlagworte:
conformation analysis
hydrogen bonds
polymorphism
structure elucidation
supramolecular chemistry
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Beschreibung
Zusammenfassung:Small yet subtle conformational changes resulting from the correlated rotation of the geminal phenyl rings in the title compound lead to different crystal packing arrangements and thus different X‐ray crystal structures (the four space groups are given in the picture). This provides the simultaneous occurence of conformational polymorphism, conformational isomorphism, and concomitant polymorphism for the same molecule.
ISSN:1433-7851
1521-3773
DOI:10.1002/1521-3773(20021018)41:20<3848::AID-ANIE3848>3.0.CO;2-L