%0 Journal Article
%T (Z)-3-(1-Hydroxy-3-oxobut-1-enyl)-6-nitro-2H-chromen-2-one
%A Nishith Saurav Topno
%A Venkataswamy Tangeti
%A H. Surya Prakash Rao
%A R. Krishna
%J Acta Crystallographica Section E
%D 2013
%I International Union of Crystallography
%R 10.1107/s1600536812051872
%X In the title compound, C13H9NO6, the coumarin system has the benzene ring aligned at 0.61 (18)¡ã with respect to the pyrone ring. An intramolecular O¡ªH...O hydrogen bond stabilizes the molecular conformation and a C¡ªH...O contact also occurs. In the crystal, weak C¡ªH...O interactions link the molecules, forming inversion dimers.
%U http://scripts.iucr.org/cgi-bin/paper?S1600536812051872