Crystal structure of 6,6′-dimethyl-2H,2′H-3,4′-bichromene-2,2′-dione

Crystal structure of 6,6′-dimethyl-2H,2′H-3,4′-bichromene-2,2′-dione

In the title compound, C20H14O4, the dihedral angle between the two coumarin ring systems is 52.37 (19)°, showing a gauche arrangement across the C—C bond which links the two units. The carbonyl groups of the two coumarin units adopt an s-trans arrangement. In the crystal, pairs of C—H...O hydrogen...

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Bibliographic Details
Main Authors: Kiran K. Pujar, Manohar V. Kulkarni, G. N. Anil Kumar
Format: Article
Language:English
Published: International Union of Crystallography 2014-11-01
Series:Acta Crystallographica Section E
Subjects:
crystal structure
bicoumarin
hydrogen bonds
π–π interactions
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536814021825

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