title: 4-[3-(Trifluoro-meth-yl)phen-yl]-5,6,7,8-tetra-hydro-cinnolin-3(2H)-one.
abstract: The title compound, C(15)H(13)F(3)N(2)O, contains one benzene ring, one cyclo-hexane ring and a pyridazine ring. The dihedral angle formed by the pyridazine ring with the benzene ring is 61.5 (2)°. The crystal structure is stabilized by two inter-molecular hydrogen bonds (N-H⋯O and C-H⋯F). The cyclohexane ring adopts a screw-boat conformation. The CF(3) group is disordered over two positions; the site occupancy factors are ca 0.6 and 0.4.
authors.affiliation: State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.forename: Xiao-Mao
authors.initials: XM
authors.lastname: Zou
authors.forename: You-Quan
authors.initials: YQ
authors.lastname: Zhu
authors.forename: Xu-Hong
authors.initials: XH
authors.lastname: Hu
authors.forename: Hua-Zheng
authors.initials: HZ
authors.lastname: Yang