In the title compound, C(14)H(8)F(2)N(2)O, the amide plane is inclined at dihedral angles of 28.12 (12) and 32.89 (12)° with respect to the two benzene rings; the dihedral angle between the two rings is 5.58 (5)°. In the crystal, inter-molecular N-H⋯O and C-H⋯F hydrogen bonds link adjacent mol-ecules into a double-chain structure along the b axis.

The title compound, C20H20O3, contains two fused rings with a quaternary carbon centre connecting p-toluoyl and eth-oxy-carbonyl groups. The dihedral angle between the fused benzene ring and the three-C-atom plane (derived from O=C-C-C=O) is 82.5 (4)°, whereas the dihedral angle between the planes of the benzene rings is 53.4 (2)°. In the crystal, molecules are linked via C-H⋯Oester hydrogen bo...

In the title compound, C(22)H(26)O(3), the dihedral angle between the cyclo-propane ring and the plane of the vinyl group is 88.2 (2)°. The dihedral angle between the phenyl and furan rings is 86.09 (8)°. In the crystal, weak inter-molecular C-H⋯π contacts together with very weak C-H⋯O hydrogen bonds stack the mol-ecules along the a axis.

In the title compound, C(14)H(12)ClNO(2), the mean plane through the amide group [-N-C=O-] forms dihedral angles of 27.55 (8) and 31.94 (7)° with the meth-oxy- and chloro-substituted benzene rings, respectively. The dihedral angle between the benzene rings is 59.24 (4)°. In the crystal, N-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into chains along the a axis.

The geometric parameters of the title compound, C(4)H(6)N(3) (+)·C(6)H(2)N(3)O(7) (-), are in the usual ranges. While two nitro groups are almost coplanar with the aromatic picrate ring [dihedral angles 3.0 (2) and 4.4 (3)°], the third is significantly twisted out of this plane [dihedral angle 46.47 (8)°]. Anions and cations are connected via N-H⋯O hydrogen bonds. The mol-ecules crystallize in ...

In the title compound, C(27)H(19)N(3)O(4), the phenol and pyrazole rings are almost coplanar [dihedral angle = 0.95 (12)°] due to an intra-molecular O-H⋯N hydrogen bond, whereas the phenyl ring is tilted by 40.81 (7)° with respect to the plane of the pyrazole ring. The aromatic ring with a nitro-phen-oxy substituent makes a dihedral angle of 54.10 (7)° with the pyrazole ring.

In the title compound, C(19)H(15)BrO(3), the dihedral angle between the naphthalene ring system and the benzene ring is 72.02 (9)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 70.88 (10) and 1.87 (12)°, respectively, with the naphthalene ring system and the benzene ring. In the crystal, two types of weak inter-molecular C-H⋯O inter-actions and a short Br⋯C contact [3.345 (2) ...

In the title compound, C(19)H(13)IN(2)O(2), the isoquinoline ring makes dihedral angles of 55.92 (3)° and 76.11 (3)° with the benzene and succinimide rings, respectively. The dihedral angle between the benzene and succinimide rings is 70.37 (3)°. In the crystal structure, the iodo atom deviates from the isoquinoline plane by 0.163 (1) Å. The crystal studied was found to be a racemic twin with a...

In the title compound, C(14)H(17)NOS, the plane defined by the bridging methyl-ene C atom and its three substituents makes dihedral angles of 14.37 (8)° with the heterocycle and 26.17 (8)° with the phenyl ring, while the dihedral angle between the heterocycle and the phenyl ring is 36.29 (7)°. In the crystal, mol-ecules are linked by C-H⋯π contacts.