title: 4-(9-Anthr-yl)-1-(4-methoxy-phen-yl)spiro-[azetidin-3,9'-xanthen]-2-one.
abstract: In the title mol-ecule, C(36)H(25)NO(3), the β-lactam ring is essentially planar, with a dihedral angle of 3.3 (2)° between the two separate three-atom N/C/C planes. The β-lactam ring makes dihedral angles of 28.45 (14), 87.4 (1) and 51.8 (1)° with the mean planes of the benzene, xanthene and anthracene ring systems, respectively. In addition to a weak intra-molecular C-H⋯N hydrogen bond, the crystal structure is stabilized by two weak inter-molecular C-H⋯O hydrogen bonds.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.forename: Selvi
authors.initials: S
authors.lastname: Karaca
authors.forename: Aliasghar
authors.initials: A
authors.lastname: Jarrahpour
authors.forename: Edris
authors.initials: E
authors.lastname: Ebrahimi
authors.forename: Orhan
authors.initials: O
authors.lastname: Büyükgüngör