Acta Cryst. (2002). E58, o501-o503  [ doi:10.1107/S1600536802005767 ]

A new polymorph of 9,10-dihydroanthracene-9,10-,-succinic acid anhydride

G. Díaz de Delgado, B. Ramírez V, W. Velásquez and P. Rodríguez

Abstract: A new non-centrosymmetric monoclinic modification of 9,10-dihydroanthracene-9,10-,-succinic acid anhydride (systematic name: 5,6:7,8-dibenzobicyclo[2.2.2]octa-5,7-diene-2,3-dicarboxylic acid anhydride), C₁₈H₁₂O₃, was obtained by reacting maleic anhydride and anthracene in xylene, followed by recrystallization from ethyl acetate. The structure consists of chains of molecules along the c axis and is held together solely through van der Waals interactions.

Online 5 April 2002

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