title: Diethyl 1,4-bis-(4-nitro-phen-yl)-1,4-dihydro-1,2,4,5-tetra-zine-3,6-dicarboxyl-ate.
abstract: The complete mol-ecule of the title compound, C(20)H(18)N(6)O(8), is generated by a crystallographic twofold axis. The dihedral angle between the nitrobenzene rings is 43.5 (2)°. The central six-membered ring exhibits a boat conformation. In the crystal structure, weak inter-molecular C-H⋯O inter-actions are observed.
authors.forename: Abdesselam
authors.initials: A
authors.lastname: Baouid
authors.forename: Aicha
authors.initials: A
authors.lastname: Boudina
authors.forename: El Hassane
authors.initials: el H
authors.lastname: Soumhi