In the title compound, C11H14N2O2, the urea-type NC=ON moiety [planar to within 0.0002 (13) Å] is inclined to the phenyl ring by 42.88 (8) Å, and the morpholine ring has a chair conformation. In the crystal, intermolecular N—H⋯O hydrogen bonds link the molecules into infinite chains in .
The title compound, C23H31NO, was semisynthesized from isocostic acid, isolated from the aerial part of Inula Viscosa (L) Aiton [or Dittrichia Viscosa (L) Greuter]. The cyclohexene ring has a half-chair conformation, whereas the cyclohexane ring displays a chair conformation. The dihedral angle between the latter ring and its substituent is 83.6 (7)°.
In the crystal structure of the title monohydrate salt, [ZnCl(C12H8N2)2][BiCl4(C12H8N2)]·H2O, the ionic components are linked into three-dimensional supramolecular channels by five pairs of C—H⋯Cl hydrogen bonds and π–π stacking interactions with an interplanar distance of 3.643 (2) Å. The solvent water molecules are lodged in the channels.
In the title compound, C21H21N5O4S·0.5C3H7NO, the heterocyclic thiazine ring adopts a half-chair conformation, with the S and N atoms displaced by −0.451 (5) and 0.233 (5) Å, respectively, from the plane formed by the remaining ring atoms. The asymmetric unit contains a disordered half-molecule of solvent lying close to inversion centers. The crystal structure is stabilized by weak intermolecular N—H⋯O and C—H⋯O interactions.
In the title compound, C11H13NO3, the conformations of the N—H and C=O bonds in the amide segment are anti to each other. Further, the conformations of the amide and carbonyl O atoms of the acid segment are also anti to the adjacent –CH2 groups. The C=O and O—H bonds of the acid group are syn to each other. In the crystal, molecules are packed into infinite chains along the b axis through intermolecular N—H⋯O and O—H⋯O hydrogen bonds.
In the title complex, [Co(C8H9N2O4)2(H2O)2]·3.5H2O, the CoII cation is six-coordinated by two H2pimda− ligands (H3pimda is 2-propyl-1H-imidazole-4,5-carboxylic acid) and two water molecules in a distorted octahedral environment. The crystal structures features a three-dimensional network stabilized by extensive O—H⋯O and N—H⋯O hydrogen bonds. The propyl groups of the ligands are disordered over two sets of sites with refined occupancies of 0.673 (8):0.327 (8) and 0.621 (17):0.379 (17). One of the water molecules is located on a site with half-occupancy.
In the title compound, C33H26F2N2O2, the piperidone ring adopts a half-chair conformation and the pyrrolidine rings adopt half-chair and envelope conformations. The two benzene rings make dihedral angles of 29.58 (5) and 76.33 (5)° with the mean plane of the 1,2-dihydroacenaphthylene unit. An intramolecular O—H⋯N hydrogen bond helps to stabilize the molecular structure. In the crystal, intermolecular C—H⋯F hydrogen bonds link the molecules into  chains. Weak C—H⋯π interactions are also observed.
In the crystal structure of the title compound, C18H19BrClNO2S, weak C—H⋯O interactions help to establish the packing.
In the title compound, C16H15N3O2·H2O, the mean plane of the approximately planar pyrazole ring [maximum deviation = 0.0474 (18) Å] makes dihedral angles of 86.32 (11) and 45.04 (10)° with the phenyl and pyridine rings, respectively. The dihedral angle between the phenyl and pyridine rings is 69.62 (11)°. In the crystal, intermolecular O—H⋯O and O—H⋯N hydrogen bonds connect the components into chains along . The crystal structure is further stabilized by π–π stacking interactions with centroid–centroid distances of 3.7730 (12) Å.
In the title compound, C18H16N6O2S, which belongs to the family of azo dyes, the dihedral angle between the benzene rings is 26.16 (7)°. In the crystal, molecules are joined by N—H⋯N and C—H⋯N hydrogen bonds into double chains parallel to the a axis.
The asymmetric unit of the title compound, C36H30O4, contains two crystallographically independent molecules of similar geometry. In both molecules, the methoxymethoxy groups are disordered over two positions with refined site occupancies of 0.613 (3):0.387 (3) and 0.589 (4):0.411 (4). The dihedral angles between the naphthalene planes within the same molecule are 71.72 (7) and 71.73 (8)°. In the crystal, neighbouring molecules are linked by intermolecular C—H⋯O hydrogen bonds, forming double chains parallel to the c axis.
The asymmetric unit of the title compound, [Cu(C26H22N2O2)]·C2H5OH, comprises a Schiff base complex and an ethanol molecule of crystallization. The CuII atom shows a distorted square-planar geometry. The dihedral angle between the two aromatic rings is 48.16 (13)°. The crystal structure is stabilized by intermolecular O—H⋯O and C—H⋯O hydrogen bonds and intermolecular π–π interactions with centroid–centroid distances in the range 3.485 (2)–3.845 (3) Å.
In the title compound, C14H15NO3, the ester group is oriented so that the carbonyl group points in the opposite direction to the hydroxy group. The molecule as a whole is almost planar (the r.m.s. deviation of the non-H atoms is 0.0268 Å). In the crystal, molecules are linked by intermolecular O—H⋯O hydrogen bonds into infinite chains that propagate parallel to the c axis.
The molecule of the title thiadiazole derivative, C11H11N3O2S2, has a butterfly-like structure and the whole molecule is disordered with a site-occupancy ratio of 0.629 (4):0.371 (4). The molecule is disordered in such a way that the 3-methyl-4-nitrophenyl units of the major and minor components are approximately related by 180° rotation around the C—N bond axis. The dihedral angle between the 1,3,4-thiadiazole and benzene rings is 70.8 (4)° in the major component and 74.9 (6)° in the minor component. In the crystal, molecules are arranged into screw chains along the c axis. These chains are stacked along the b axis. Weak intermolecular C—H⋯O and C—H⋯π interactions and a short C⋯O contact [3.005 (7) Å] are present.
The tiltle complex, [La2(C7H7NO2)4Cl2(H2O)6]Cl4·2H2O, is a centrosymmetric dimer formed by edge-sharing LaO5(H2O)3Cl polyhedra linked together by a carboxylate ligand. The two LaIII metal ions are linked by two bidentate bridging carboxylate groups with a κ2
O:O′ coordination mode and two bidentate chelating bridging carboxylate groups with a κ3
O:O,O′ coordination mode. The coordination sphere of lanthanum, completed by a terminal chloride and three water molecules, adopts a distorted tricapped trigonal–prismatic arrangement. N—H⋯Cl, N—H⋯O and O—Hwater⋯Cl hydrogen bonds, and slipped π–π interactions between parallel benzene rings [centroid–centroid distance of 3.647 (3) Å] are observed in the structure. These combine to stabilize a three-dimensional network.
In the title compound, C18H22ClNO3, the dihedral angle between the benzene ring and the conjugated part of the enaminone ring is 55.19 (9)°. The ester substituent makes a dihedral angle of 81.0 (2)° with this latter moiety. The crystal structure features N—H⋯O and weak C—H⋯O intermolecular interactions.
The crystal structure of the title compound [systematic name: 3,5,7-triaza-1-azoniatricyclo[18.104.22.168,7]decane (E)-3-carboxyprop-2-enoate], C6H13N4
−, had been determined previously by Bowes et al. [Acta Cryst. (2003), B59, 100–117]. Their structure contained an approximately 3:1 ratio of fumarate and succinate monoanions disordered over the same position. The succinate anion component forms a similar structural role to the fumarate anion and came about due to an impurity in the starting material, fumaric acid. In this work, the crystal structure of the pure salt is presented, which is identical, apart from the lack of disorder of the anions, to the previous structure. In the crystal, the ions assemble in the solid state, forming chains via N+—H⋯O− and O—H⋯O− hydrogen bonds, which are linked into a three-dimensional network by C—H⋯O interactions.
In the molecule of the title compound, C14H10FN3O, the bicyclic quinazoline system is effectively planar, with a mean deviation from planarity of 0.0140 (3) Å. The quinazoline heterocyclic system and the adjacent benzene ring make a dihedral angle of 85.73 (9)°. Two intermolecular N—H⋯N hydrogen bonds contribute to the stability of the crystal structure. In addition, a weak π–π stacking interaction [centroid–centroid distance = 3.902 (2) Å] is observed.
In the title compound, [Ni(C24H16N6)2](NCS)2·2H2O, the central NiII ion is octahedrally coordinated by six N atoms of two tridentate 2,3,5,6-tetra-2-pyridylpyrazine ligands (tppz). Two thiocyanate anions act as counter-ions and two water molecules act as solvation agents. O—H⋯N hydrogen bonds are observed in the crystral structure.
In the title complex, [Mo(C7H5OS)Cl(C18H15P)2(CO)2], the geometry around the metal atom is a capped octahedron. The phenoxythiocarbonyl ligand coordinates the MoII atom through the C and S atoms. A one-dimensional structure is formed by π–π intermolecular interactions and a supramolecular aggregation is determined by intermolecular C—H⋯O, C—H⋯Cl, C—H⋯π(arene) hydrogen bonds and CO⋯π(arene) interactions [O⋯centroid distances = 3.485 (4) and 3.722 (3) Å].
The title compound, AgMg3(PO4)(HPO4)2, which has been synthesized by the hydrothermal method, has an alluaudite-like structure which is formed by edge-sharing MgO6 octahedra (one of which has symmetry 2), resulting in chains linked together by phosphate groups and hydrogen bonds. The three-dimensional framework leads to two different channels along the c axis, one of which is occupied by Ag+ ions with a square-planar coordination. The Ag+ ions are disordered over two sites in a 0.89 (3):0.11 (3) ratio. The OH groups, which point into the other type of channel, are involved in strong O—H⋯O hydrogen bonds. The title compound is isotypic with the compounds AM
3H2(XO4)(HXO4)2 (A = Na or Ag, M = Mn, Co or Ni, and X = P or As) of the alluaudite structure type.
In the crystal of the title compound, C8H9NO2, molecules assemble to form C(8) chains along the b axis by N—H⋯O hydrogen bonds, supported by weaker C—H⋯O hydrogen bonded-interactions between adjacent chains.
In the title mononuclear cadmium complex, [Cd(C10H5O4)2(H2O)2], the CdII atom, located on a crystallographic inversion center, exhibits a slightly distorted octahedral geometry and is six-coordinated by two O atoms from water molecules in the axial positions and four O atoms from two deprotonated coumarin-3-carboxylic acid ligands in the equatorial plane. Angles around the CdII atom vary between 81.00 (5) and 99.00 (0)°. The Cd—O bond lengths vary between 2.1961 (13) and 2.3360 (13) Å. O—H⋯O hydrogen bonds between the H atoms of coordinated water molecules and the O atoms of carboxylate groups link the complex molecules into layers parallel to the ab plane.
In the title compound, C12H8Cl3NO2S, the two aromatic rings are tilted relative to each other by 56.5 (1)°. The crystal structure features centrosymmetric dimers in which molecules are linked by N—H⋯O hydrogen bonds.
In the title compound, [CuCl2(C9H11N3O)], the CuII atom is in a distorted square-pyramidal CuCl2N2O coordination geometry. The tridentate acetohydrazide ligand chelates in a meridional fashion. The chloride ligand in the axial position forms a long Cu—Cl distance of 2.4892 (9) Å. In contrast, the Cu—Cl distance from the equatorial chloride ligand is much shorter [2.2110 (7) Å]. Intermolecular N—H⋯Cl and C—H⋯Cl hydrogen bonds link the complexes into a three-dimensional network.