In the title mol-ecule, C(16)H(14)N(2)O, the dihedral angle between the two phenyl rings is 23.5 (6)°. In the crystal, N-H-O hydrogen bonds link mol-ecules into chains running along the a axis.

The title compound, C(23)H(31)O(2)P, has three fully extended substituents around the P-atom chiral centre, forming an S(P) configuration. The phenyl rings are inclined at a dihedral angle of 3.2 (3)°.

In the title hydrate, C13H11N3O·H2O, the benzotriazole ring system is planar (r.m.s. deviation = 0.007 Å) and is almost orthogonal to the phenyl ring to which it is linked by a methyl-ene group, forming a dihedral angle of 81.87 (15)°. In the crystal, mol-ecules are linked into chains along [001] by O-H⋯O hydrogen bonds. The chains are consolidated into a three-dimensional architecture by C-H⋯O...

The tetra-zole and phenyl rings of the title compound, C(7)H(5)ClN(4), form a dihedral angle 64.5°.

In the title compound, C(20)H(22)N(2)O(3)S, the oxazoline ring is planar (r.m.s. deviation = 0.045 Å) and forms dihedral angles of 47.24 (8) and 10.11 (8)° with the S- and C-bound phenyl rings, respectively. The nitro group lies to the same side of the mol-ecule as the oxazoline ring but is orientated so as not to inter-act with the ring. Linear supra-molecular chains along [010] are formed via...

In the crystal structure of the title compound, C(17)H(15)FN(2)O, the mol-ecules form a three-dimensional network stabilized by π-π inter-actions between two imidazole rings related by a centre of symmetry. The distance between the centroids is 3.5488 (8) Å. The imidazole ring makes dihedral angles of 14.30 (7) and 33.39 (7)° with the 4-fluoro-phenyl ring and the phenyl ring, respectively.

The asymmetric unit of the title compound, C(17)H(12)N(4)S(4), contains one half-mol-ecule situated on a twofold rotational axis. In the mol-ecule, the thia-diazole and attached phenyl rings are twisted by 5.8 (3)°.

The title compound, C(13)H(13)NO(4)S, is a racemic mixture of enanti-omers. Short intra-molecular contacts between sulfonyl O and ester carbonyl C atoms are observed [C⋯O = 2.881 (1), 2.882 (1) and 2.686 (1) Å], indicating the possibility of donor-acceptor inter-actions between these groups. The dihedral angle between the phenyl and cyclopropyl rings is 79.3 (1)°.

In the title compound, C(20)H(16)Br(4), both vinylic substituents were introduced by a Corey-Fuchs reaction using 4,12-diform-yl[2.2]paracyclo-phane as starting material. The title compound may be used as a valuable precursor for the synthesis of diethyn-yl[2.2]paracyclo-phane. The title mol-ecule is centrosymmetric with a crystallographic center of inversion between the centers of the two phen...

In the title compound, C(17)H(21)NO(4)S, the phenyl and dimeth-oxy-phenyl rings are almost perpendicular to each other, making a dihedral angle of 82.57 (5)°. The structure is stabilized by inter-molecular C-H⋯O inter-actions and the packing is further enhanced by C-H ⋯π inter-actions.