title: 3,12-Dimeth-oxy-5,6,9,10-tetra-hydro-[5]helicene-7,8-dicarbo-nitrile.
abstract: The complete molecule of the title compound, C26H20N2O2, is generated by a crystallographic twofold axis. The torsion angle between the terminal and central benzene rings is -32.5 (2)°. The torsion angle along the inner helical rim of the molecule is -18.8 (2)° with each other. The C⋯C distance between the terminal rings is 3.016 (2) Å. In the crystal, weak C-H⋯N hydrogen bonds are observed.
authors.affiliation: National Metal and Materials Technology Center (MTEC), 114 Thailand Science Park, Paholyothin Rd, Klong Luang, Pathumthani 12120, Thailand.
authors.forename: Somboon
authors.initials: S
authors.lastname: Sahasithiwat
authors.affiliation: National Metal and Materials Technology Center (MTEC), 114 Thailand Science Park, Paholyothin Rd, Klong Luang, Pathumthani 12120, Thailand.
authors.forename: Thanasat
authors.initials: T
authors.lastname: Sooksimuang
authors.affiliation: National Metal and Materials Technology Center (MTEC), 114 Thailand Science Park, Paholyothin Rd, Klong Luang, Pathumthani 12120, Thailand.
authors.forename: Siriporn
authors.initials: S
authors.lastname: Kamtonwong
authors.affiliation: National Metal and Materials Technology Center (MTEC), 114 Thailand Science Park, Paholyothin Rd, Klong Luang, Pathumthani 12120, Thailand.
authors.forename: Waraporn
authors.initials: W
authors.lastname: Parnchan
authors.affiliation: National Metal and Materials Technology Center (MTEC), 114 Thailand Science Park, Paholyothin Rd, Klong Luang, Pathumthani 12120, Thailand.
authors.forename: Laongdao
authors.initials: L
authors.lastname: Kangkaew
keywords: crystal structure