organic compounds
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In the title solvate, C44H30Cl2N2O2·2C4H8O2, the complete polycyclic molecule is generated by inversion symmetry. The dihedral angle between the quinolyl ring system (Q; r.m.s. deviation = 0.020 Å) and the pendant phenyl ring is 78.80 (6)°; the dihedral angle between Q and the central benzene ring is 85.92 (7)°. In the crystal, the components are linked by C—HO and C—Hπ interactions, generating (110) layers. Weak aromatic π–π stacking [centroid–centroid distances = 3.7025 (11) and 3.8124 (10) Å] is also observed.
metal-organic compounds
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The title salt, (C7H11N2)[FeCl4], consists of one essentially planar (the r.m.s. deviation for all non-H atoms being 0.004 Å) 4-(dimethylamino)pyridinium cation and a tetrahedral tetrachloridoferrate(III) anion. The cations and anions are arranged in layers parallel to (010). Besides electrostatic interactions, the crystal packing features N—HCl and C—HCl hydrogen bonds between cations and anions, forming a three-dimensional network.
metal-organic compounds
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The structure of the title compound, [Cd(NCS)2(C7H9NO)2]n, consists of cadmium–thiocyanate layers parallel to the ab plane. Pairs of CdII ions are bridged by two end-to-end inversely bridging μ-NCS-N:S thiocyanate groups, forming a two-dimensional network with the remaining two trans positions of the octahedrally coordinated CdII ions occupied by the N atoms of two neutral 2-methoxyaniline ligands. The crystal structure is stabilized by intralayer N—HS hydrogen bonds.
organic compounds
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In the title 1:1 adduct, C9H12N2O2·C6H6O, the dihedral angle between the benzene ring and the salicylic amide group is 6.68 (6)°. The conformation of the amide group is supported by two intramolecular N—HO hydrogen bonds, which close S(6) and S(7) rings. In the crystal, the components are linked by O—HO and N—HO hydrogen bonds, generating (100) sheets.
metal-organic compounds
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The structure of the title polymeric compound, [Cd(SCN)2(C6H8N2)2]n, exhibits a two-dimensional staircase-like structure parallel to (010) in which the CdII atom lies on a twofold rotation axis and has a distorted octahedral CdS2N4 geometry involving four μ-1,3-(SCN) group donors and two N-atom donors from 1,3-phenylenediamine ligands, which also have twofold symmetry. The major contributions to the cohesion and the stability of this two-dimensional polymeric structure are the covalent Cd—S,N bonds and one weak intralayer N—HS hydrogen bond.
metal-organic compounds
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The title polymeric coordination compound, {[Co2(C10H2O8)(H2O)8]·8H2O}n, was obtained by slow diffusion of a dilute aqueous solution of CoCl2 and the sodium salt of benzene-1,2,4,5-tetracarboxylic acid (H4btec) through an agar–agar gel bridge in a U-shaped tube. The two independent Co2+ ions are each situated on an inversion centre and are coordinated in a slightly distorted octahedral geometry by four water O atoms and two carboxylate O atoms from two btec4− ligands (-1> symmetry), forming a layer parallel to (11-1). This layer can be described as a molecular two-dimensional square grid with the benzene rings at the nodes and the CoII atoms connecting the nodes. O—HO hydrogen-bonding interactions involving the coordinating water molecules, the carboxylate O atoms and lattice water molecules lead to the formation of a three-dimensional network.
organic compounds
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In the crystal of the title compound, C7H9N3O4, molecules are linked by weak C—HO hydrogen bonds into chains along the a-axis direction. The dihedral angle between the ring and the nitro group is 3.03 (6), while that between the ring and the acetate group is 85.01 (3)°.
organic compounds
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In the title compound, C5H7N5S·H2O, the main molecule is approximately planar, with a maximum deviation from the mean plane through the non-H atoms of 0.1478 (12) Å for the amine N atom. In the crystal, the components are connected via N—HO, N—HS and O—HN hydrogen bonds, forming a three-dimensional network.
organic compounds
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In the title hydrate, C17H18N2O5·H2O, the complete organic molecule is generated by a crystallographic mirror plane with one C and one O atom lying on the mirror plane. The O atom of the water molecule has m site symmetry. Two symmetry-related intramolecular O—HO hydrogen bonds complete S(6) rings in the organic molecule. In the crystal, the components are linked into (010) sheets by O—HO and N—HO hydrogen bonds.