The asymmetric unit of the title compound, C(10)H(8)BrNO(2), contains three crystallographically independent mol-ecules. Two of the N-C-C-Br side chains adopt anti conformations [torsion angles = -179.8 (5) and -179.4 (4)°] and the other is gauche [-66.5 (6)°]. The crystal structure features short Br⋯O [3.162 (5) Å] contacts, C-H⋯O hydrogen bonds and numerous π-π stacking inter-actions [centroi...

The asymmetric unit of the title compound, C16H14O, contains two independent mol-ecules differing in the orientations of the allyl groups; the corresponding O-C-C(H2)-C(H) torsion angles are -61.01 (13) and -177.43 (10)°. In the crystal, O-H⋯O hydrogen bonds link four mol-ecules into a centrosymmetric tetra-mer, in which each hy-droxy group acts as a donor and an acceptor of hydrogen bonds.

The title mol-ecular salt, C8H12N(+)·C4H3O4 (-), crystallized with two independent cations and anions in the asymmetric unit. The ethanaminium side chains of the cations exhibit anti conformations [C-C-C-N torsion angles = 176.5 (3) and -179.4 (3)°]. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds connect adjacent anions and cations, and , O-H⋯O hydrogen bonds connect adjacent anions, generating...

The title compound, C(15)H(12)Br(2), comprises a norbornane unit having a dibromo-naphthalene ring fused on one side. Both Br atoms are twisted slightly out of the plane of the naphthalene ring system with a Br-C-C-Br torsion angle of 5.3 (5)°. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯Br hydrogen bonds, forming an infinite C(9) chain along [110].

The asymmetric unit of the title compound, C(14)H(14)ClNO(2)S, contains two independent mol-ecules. The torsion angles of the C-SO(2)-NH-C segments in the two mol-ecules are -76.5 (5) and -48.3 (4)°. The two aromatic rings are tilted relative to each other by 76.6 (2)° in one mol-ecule and 70.7 (2)° in the other. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules...

The asymmetric unit of the title compound, C(13)H(14)N(2)O, contains two independent mol-ecules, which differ in the twist of the phenyl ring: the N(pyrrole)-C(H(2))-C-C torsion angles are -73.0 (3) and 17.1 (3)°. In the crystal structure, mol-ecules are linked through N-H⋯O hydrogen bonds into chains extending along the a axis.

The title compound, C(5)H(10)N(2)S(5), was unintentionally obtained as the product of an attempted synthesis of a methyl-carbamodithioic acid using methyl-amine and carbon disulfide. In the mol-ecule, two dithio-carbamate groups are bridged by a -CH(2)S- unit. The C-S-S-C torsion angle is -90.13 (11)°. The crystal structure is stabilized by N-H⋯S inter-actions between neighbouring mol-ecules. A...

The asymmetric unit of the title compound, C(18)H(23)BrClN(3)O(2), consists of two mol-ecules which exhibit different conformations of the pentyl chains [C-C-C-C torsion angles of -60.4 (4) and 175.8 (3)°]. The crysal packing exhibits a chain structure, generated through the O atom of the pyridazinone forming a hydrogen bond with the N-H group of an adjacent mol-ecule.

The complete molecule of the title compound, C(18)H(24)N(2)O(2), is generated by a crystallographic inversion centre. The torsion angles in the hexa-methyl-ene chain are consistent with an anti-periplanar conformation, whereas the conformation of the O-CH(2)-CH(2)-CH(2) unit is gauche. The three-dimensional crystal packing is stabilized by N-H⋯O and N-H⋯N hydrogen bonding.

In the title compound, C(18)H(24)N(2), the mol-ecular unit adopts a trans conformation around the central C-C bond [N-C-C-N torsion angle of 179.2 (3)°], with the two aromatic rings almost coplanar [dihedral angle of only 0.70 (4)°]. The crystal packing is driven by co-operative contacts involving weak C-H⋯N and C-H⋯π inter-actions, and also the need to fill effectively the available space.