title: 2-Methyl-3-(4-methyl-phen-yl)-5,6-diphenyl-2,3-dihydro-pyrazine.
abstract: In the title mol-ecule, C(24)H(22)N(2), four atoms (N-C-C-N) of the heterocyclic ring, with their attached H atoms, and all atoms of the methyl group, are disordered over two positions; the site-occupancy factor of the major component is 0.713 (6). The major disorder component of the heterocyclic ring adopts a half-chair conformation, with all substituents equatorial. The benzene ring adjacent to the methyl group forms dihedral angles of 79.68 (11) and 80.92 (11)° with the phenyl rings; the dihedral angle between adjacent phenyl rings is 59.10 (11)°. The crystal structure features three C-H⋯π inter-actions.
authors.affiliation: Postgraduate Research Department of Physics, Rajah Serfoji Government College (Autonomous), Thanjavur 613 005, Tamilnadu,  India.
authors.forename: A
authors.initials: A
authors.lastname: Thiruvalluvar
authors.forename: N
authors.initials: N
authors.lastname: Anuradha
authors.forename: S
authors.initials: S
authors.lastname: Chitra
authors.forename: D
authors.initials: D
authors.lastname: Devanathan
authors.forename: R J
authors.initials: RJ
authors.lastname: Butcher