Date Published: August 01, 2009
Publisher: International Union of Crystallography
Author(s): Pedro Valerga, M. Carmen Puerta, Zenaida Rodríguez Negrín, Nilo Castañedo Cancio, Miguel Palma Lovillo.
Crystals of the title compound, C7H7NO3, under Mo Kα radiation sublime in less than 1h at room temperature. However, it was possible to collect data at 100K. It crystallized as the E isomer only. A double-bond conjugation in the furan ring is extended to the nitroalkenyl group. Molecular associations were realized in the crystal through N⋯π [3.545 (2) Å] interactions involving the furan ring and C—H⋯O hydrogen bonds.
For general background to (nitro-alkenyl)-furan compounds, see: Yan et al. (2008 ▶); Ono N. (2006 ▶); Vallejos et al. (2005 ▶); Negrín et al. (2003 ▶); Negrín et al. (2002 ▶), Estrada et al. (1999 ▶); Agafonov et al. (1991 ▶); Gruntfest et al. (1972 ▶). For related structures, see: Valerga et al. (2009 ▶); Martínez-Bescos et al. (2008 ▶); Novoa-de-Armas et al. (1997 ▶); Pomés et al. (1995 ▶).