Diethyl 9,10-endo-ethano-9,10-dihydroanthracene-11,11-dicarboxylate

Michael Simpson, John M. D. Storey, William T. A. Harrison
2004 Acta Crystallographica Section E  
Key indicators Single-crystal X-ray study T = 120 K Mean '(C±C) = 0.003 A Ê R factor = 0.055 wR factor = 0.143 Data-to-parameter ratio = 14.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e. # 2004 International Union of Crystallography Printed in Great Britain ± all rights reserved The title compound, C 22 H 22 O 4 , possesses normal geometrical parameters and the dihedral angle between the two benzene ring planes is 57.62 (5)
more » ... . The crystal packing is controlled by van der Waals forces and a possible CÐHÁ Á ÁO interaction, the latter resulting in a supramolecular C(6) motif.
doi:10.1107/s1600536804012279 fatcat:wv7pm4mqtzanxaopnyj5xw3qhe