title: 8,15-Dioxa-10,13-di-aza-tetra-cyclo-[14.4.0.0(2,7).0(9,14)]icosa-1(16),2,4,6,9(14),10,12,17,19-nona-ene.
abstract: The asymmetric unit of the title compound, C16H10N2O2, contains one half-mol-ecule, the complete mol-ecule being generated by twofold rotation symmetry. The plane of the pyrazine ring forms a dihedral angle of 64.87 (6)° with that of the benzene ring, and the planes of the two benzene rings are inclined to one another by 54.20 (6)°. The O atom deviates from the plane of the benzene ring by 0.1549 (8) Å. There are no significant inter-molecular inter-actions in the crystal.
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Thothadri
authors.initials: T
authors.lastname: Srinivasan
authors.forename: Venkatesan
authors.initials: V
authors.lastname: Kalpana
authors.forename: Perumal
authors.initials: P
authors.lastname: Rajakumar
authors.forename: Devadasan
authors.initials: D
authors.lastname: Velmurugan