ABSTRACT: In the title compound, C(10)H(11)N(2) (+)·HSO(4) (-)·2H(2)O, the asymmetric unit contains two protonated 4-amino-quinoline cations and two hydrogen sulfate anions with four water mol-ecules. The crystal structure involves extensive N-H?O and O-H?O hydrogen bonding.
Project description:The title hydrated quinoline derivative, C(11)H(9)NO(3)·2H(2)O, crystallizes as a zwitterion in which the quinoline N atom is protonated. The quinoline ring is essentially planar, with a maximum deviation of 0.017?(2)?Å. An intra-molecular N-H?O hydrogen bond between the protonated N atom and the O atom of the carboxyl-ate group in the zwitterion forms an S(5) ring motif. In the crystal, the zwitterions are connected into inversion dimers via pairs of N-H?O and C-H?O hydrogen bonds with R(2) (2)(4) and R(1) (2)(6) motifs. The water mol-ecules are connected via O-H?O hydrogen bonds, forming supra-molecular chains along the c axis. Furthermore, the chains and the dimers are connected via O-H?O hydrogen bonds, forming ladder-like supra-molecular ribbons along the c axis.
Project description:THE STRUCTURE OF THE TITLE COMPOUND (COMMON NAME: amodiaquinium dichloride dihydrate), C(20)H(24)ClN(3)O(2) (+)·2Cl(-)·2H(2)O, was previously determined from powder diffraction data [Llinàs et al. (2006 ?). Acta Cryst. E62, o4196-o4199]. It has now been refined from diffractometer data to a significantly higher precision. The dihedral angle between the quinoline and benzene rings is 54.57?(6)°. The central amino N atom inter-acts more strongly with the quinoline ring than with the benzene ring, as indicated by the shorter C-N bond length [1.341?(2)?Å compared to 1.431?(2)?Å]. In the crystal, mol-ecules are packed into a three-dimensional network/supra-molecular structure through hydrogen bonds between the amodiaquinium cations, chloride anions and water mol-ecules.
Project description:In the crystal structure of the title compound, C(6)H(8)NO(+)·ClO(4) (-)·2H(2)O, inter-molecular N-H?O and O-H?O hydrogen bonds occur. The protonated amine cations and the perchlorate anions are linked through the water mol-ecules, and the hy-droxy groups of the cations and the anions are linked through the water mol-ecules. The cations are connected to the perchlorate anions via inter-molecular N-H?O hydrogen bonds. In addition, the crystal structure exhibits weak inter-molecular C-H?? inter-actions.
Project description:The cations and anions of the title salt, 3C(6)H(16)N(+)·HSO(4) (-)·SO(4) (2-), are linked by N-H?O and O-H?O hydrogen bonds into a three-dimensional network. The hydrogensulfate ion, with a single S-O(H) bond of 1.563?(2)?Å, forms a short O-H?O hydrogen bond [O?O = 2.609?(2)?Å] to the sulfate ion. The hydrogensulfate ion accepts two hydrogen bonds from two cations, whereas the sulfate ion, as an acceptor, binds to four cations. The sulfate ion is disordered approximately equally over two sites related by rotation around one of the O-S bonds.
Project description:The title compound, C(9)H(7)IN(+)·Cl(-)·2H(2)O, was obtained during the synthesis of 8-iodo-quinoline from 8-amino-quinoline using the Sandmeyer reaction. The 8-iodo-quinolinium ion is almost planar. Solvent water mol-ecules and chloride ions form a hydrogen-bonded chain along the c axis via O-H?Cl links. The 8-iodo-quinolinium ions, which are packed along the c axis with cationic aromatic ?-? stacking (centroid-centroid distance = 3.624?Å), are linked to the chain via N-H?O hydrogen bonds.
Project description:The title compound, C(5)H(10)NO(+)·HSO(4) (-), has been synthesized by reaction of 1-methyl-pyrrolidin-2-one with H(2)SO(4) in a 1:1 molar ratio. The substituted pyrrolium ring adopts an envelope conformation. The hydrogensulfate anions form infinite helical chains parallel to the a axis via strong O-H?O hydrogen bonds. The pyrrolium cations are pendant from the chains. These cations are the hydrogen donors in the strong O-H?O hydrogen bonds to the hydrogensulfates. In addition, there are weak C-H?O hydrogen bonds in the structure.
Project description:The triclinic unit cell of the title compound, N(2)H(6) (2+)·2C(6)H(3)N(2)O(4) (-)·2H(2)O, contains one doubly protonated hydrazine cation which lies on an inversion centre, two symmetry-related singly deprotonated 6-carboxy-pyridazine-3-carboxyl-ate anions and two symmetry-related solvent water mol-ecules. The anions inter-act via hydrogen bonds to form double ribbons which are bridged by hydrogen bonds donated by hydrazinediium cations and water molecules.
Project description:The title compound, (C(10)H(28)N(4))[MnCl(4)(H(2)O)(2)]Cl(2)·2H(2)O, consists of isolated octa-hedral [MnCl(4)(H(2)O)(2)](2-) anions, tetra-protonated 1,4,8,11-tetra-azoniacyclo-tetradecane cations, chloride anions and water mol-ecules connected by a network of hydrogen bonds. The Mn(II) atom is situated on an inversion centre, and the 1,4,8,11-tetra-azoniacyclo-tetradecane cation is located on a mirror plane.
Project description:In the centrosymmetric dinuclear title complex, [Mn(2)(C(16)H(10)NO(2))(4)(C(12)H(8)N(2))(2)(H(2)O)(2)]·2H(2)O, the Mn(II) cation is in a distorted octa-hedral coordination geometry defined by two N atoms from a 1,10-phenanthroline ligand, one water O atom and three O atoms from three 2-phenyl-quinoline-4-carboxyl-ate anions. A pair of 2-phenyl-quinoline-4-carboxyl-ate anions bridge two Mn cations, forming the dinuclear mol-ecule. An intra-moleculr O-H?O hydrogen bond occurs. Inter-molecular O-H?O and O-H?N hydrogen bonds are present in the crystal structure.
Project description:The title Pd(II) coordination compound, (C(9)H(6)ClINO)[PdCl(2)(C(9)H(4)ClINO)]·2H(2)O, was prepared as a potential anti-cancer agent. Its structure is ionic and consists of a square-planar [PdCl(2)(CQ)](-) complex anion (CQ is 5-chloro-7-iodo-quinolin-8-olate), with the Pd(II) atom surrounded by two chloride ligands in a cis configuration and one N,O-bidentate CQ mol-ecule, a protonated anion of CQ as counter-cation and two non-coordinated water mol-ecules. The water mol-ecules are involved in O-H?O and N-H?O hydrogen bonds, which inter-connect the HCQ(+) cations into a chain parallel to . Apart from these inter-actions, the structure is also stabilized by face-to-face ?-? inter-actions [centroid-centroid = 3.546?(3)?Å], which occur between the phenolic parts of the complex anions and cations.