4-(9-Anthryl)-1-(3-Bromo-phenyl)spiro-[Azetidine-3,9'-xanthen]-2-one

Abstract

In the title mol-ecule, C35H<inf>8</inf>2BrNO<inf>2</inf>, the four-membered ring of the Β-lactam unit is nearly planar [maximum deviation = 0.003 (3) Å] and makes dihedral angles of 87.07 (15), 59.80 (16) and 20.81 (19)°, respectively, with the xanthene system, the anthracene system and the bromo-substituted benzene ring. The mol-ecular conformation is stabilized by weak intra-molecular C- H⋯O and C- H⋯N hydrogen bonds. The crystal structure features weak C- H⋯π inter-actions.