metal-organic compounds
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In the title solvated salt, [Ag(C18H15P)4](CF3CO2)·C2H5OH, the AgI atom is coordinated by four P atoms from triphenylphosphane ligands in a distorted tetrahedral geometry. The anion and solvent are engaged in weak O—HO hydrogen bonds. Of the four triphenylphosphane ligands, two each have an equally disordered phenyl ring while the AgI atom is disordered over two positions in a 0.9595 (15):0.0405 (15) ratio and the trifluoroacetate anion is equally disordered over two positions with respect to the lattice ethanol molecule.
metal-organic compounds
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The AgI atom in the title hydrated solvated salt, [Ag(C18H15As)4](CF3CO2)·0.5CH3OH·0.5H2O, is coordinated by four As atoms from triphenylarsane ligands in a distorted tetrahedral geometry. In the crystal, O—HO hydrogen bonding occurs between carboxylate groups of anions and lattice solvent molecules. Of the four triphenylarsane ligands in the Ag complex cation, two each have an equally disordered phenyl ring while the trifluoroacetate anion is disordered over two positions with respect to the lattice methanol and water molecules which both show half-occupyncy. The crystal studied was a non-merohedral twin with a 13.6 (1)% contribution of the minor twin component.
metal-organic compounds
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The AgI atom in the title centrosymmetric dinuclear compound, [Ag2(C11H10N3O)2(C11H11N3O)2]·2H2O, shows a T-shaped coordination arising from bonding to the N atom of a neutral 2-[(pyrimidin-2-yl)aminomethyl]phenol ligand, the N atom of the 2-[(pyrimidin-2-yl)aminomethyl]phenolate anion [N—Ag—N = 171.8 (1)°] and the terminal O atom of the other anion [Ag—O = 2.606 (3) Å]. A pair of 2-[(pyrimidin-2-yl)aminomethyl]phenolate anions link the two AgI atoms to form the dinuclear compound. In the crystal, adjacent dinuclear molecules are linked to the lattice water molecules, generating an O—HO- and N—HO-connected three-dimensional network. In the crystal, the hydroxy H atom is disordered over two positions in a 1:1 ratio; one half-occupancy H atom is connected to one hydroxy group, whereas the other half-occupancy H atom is connected to another hydroxy group.
metal-organic compounds
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The title coordination polymer, {[Ag2(C6H5N2O)(C6H6N2O)2]NO3}n, features a deprotonated N-(pyridin-4-ylmethylidene)hydroxylaminate anion and two neutral N-(pyridin-4-ylmethylidene)hydroxylamine molecules in the asymmetric unit. The anion connects three AgI atoms through its O and two N-donor atoms. One neutral ligand functions in a monodentate mode; the other functions in a bridging mode, binding though its two N atoms. The coordination geometry of the two independent metal atoms is T-shaped; the manner of bridging gives rise to a layer motif parallel to (100). In the crystal, the nitrate ion is disordered over two positions in a 1:1 ratio, and is sandwiched between adjacent layers. O—HO hydrogen bonding is present between nitrate ions and layers, and also between adjacent layers.
metal-organic compounds
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In the mononuclear title compound, [Ag(NO3)(C6H6N2O)2], the AgI atom is located on a twofold rotation axis and the nitrate-chelated AgI atom is further coordinated by two aromatic N atoms of hydroxylamine ligands in a distorted tetrahedral geometry. In the crystal, the nitrate ion has 2 symmetry with the N atom and one O atom located on the twofold rotation axis, and is linked to hydroxy groups of the hydroxylamine ligands by O—HO hydrogen bonds, generating a chain running along the b axis.
metal-organic compounds
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The AgI atom in the title compound, [Ag(C11H11N3O)3]NO3, shows a T-shaped coordination arising from bonding to the N atom of three N-heterocycles; the geometry is distorted towards square pyramidal owing to two weak AgOnitrate interactions [AgO = 2.691 (5) and 3.073 (5) Å]. The cation and anion are linked by O—HN and N—HO hydrogen bonds, generating a three-dimensional network.
metal-organic compounds
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The SnIV atom in the title compound, [Sn(CH3)2(NCS)2(C12H8N2)], is located on a twofold rotation axis in a distorted octahedral enviroment. The methyl groups are trans to each other [C—Sn—C = 175.7 (3)°], whereas the thiocyanate groups are cis to each other.
metal-organic compounds
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The tetranuclear title compound, [Sn4(CH3)8(C2H5O)2O2(C3H4N3S)2], lies about a center of inversion; the molecule features a three-rung-staircase Sn4O4 core in which two SnIV atoms are bridged by the 4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazol-1-ide group. The negatively charged N atom of the group binds to the terminal SnIV atom at a shorter distance [Sn—N = 2.240 (3) Å] compared with the neutral N atom that binds to the central SnIV atom [Sn← N = 2.641 (3) Å]. The terminal SnIV atom is five-coordinate in a cis-C2SnNO2 trigonal–bipyramidal geometry [C—Sn—C = 127.5 (2)°], whereas the central SnIV atom is six-coordinate in a C2SnNO3 skew-trazepoidal bipyramidal geometry [C—Sn—C = 145.0 (2)°].
metal-organic compounds
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The tetranuclear title compound, [Sn4(CH3)8(C3H7O)2O2(C3H4N3S)2], lies about a center of inversion; the molecule features a three-rung-staircase Sn4O4 core in which two SnIV atoms are bridged by the 4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazol-1-ide group. The negatively charged N atom of the group binds to the terminal SnIV atom at a shorter distance [Sn—N = 2.236 (2) Å] compared with the neutral N atom that binds to the central SnIV atom [Sn← N = 2.805 (2) Å]. The terminal SnIV atom is five-coordinate in a cis-C2SnNO2 trigonal–bipyramidal geometry [C—Sn—C = 136.4 (1)°], whereas the central SnIV atom is six-coordinate in a C2SnNO3 skew-trazepoidal bipyramidal geometry [C—Sn—C = 145.4 (1)°]. The C atoms of the isopropoxy group are disordered over two positions in a 0.591 (7):0.409 (7) ratio.
metal-organic compounds
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In the centrosymmetric dinuclear title AgI compound, [Ag2(C6H6N2O)4](NO3)2, the aromatic amine-coordinated AgI atom is further bridged by two hydroxylamine molecules that use aromatic and oxime N atoms for bridging, and it exists in a distorted trigonal-planar geometry. In the crystal, the nitrate anions link to the dinuclear compound molecules via O—HO hydrogen bonds, generating a chain running along the a-axis direction.
metal-organic compounds
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In the crystal of the title compound, [Cd2Na2(C2H3O2)2(C21H24N2O4)2]·0.67C2H6O, the doubly deprotonated Schiff base ligand N,N′,O,O′-chelates to the CdII cation, which is also O,O′-chelated by the acetate ion. Two Cd–Schiff base units are connected to two Na+ atoms to form the tetranuclear complex, in which the Cd2+ and Na+ cations show distorted octahedral coordinations. The asymmetric unit consists of half a tetranuclear molecule (lying on an inversion center) and a full tetranuclear molecule (lying on a general position) along with a lattice ethanol molecule, which links to the coordinating acetate ion via an O—HO hydrogen bond. In the crystal, the propyl and ethyl groups of the complex molecule are disordered over two positions in a 1:1 ratio; the ethyl group of the lattice ethanol molecule is also equally disordered over two positions.
metal-organic compounds
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In the title compound, [Sn2(CH3)6(NCS)2(C24H22N4)], the 1,2,3,4-tetrakis(pyridin-4-yl)butane ligand uses the pyridine N atoms at the ends of the butyl chain to coordinate to two trimethylthiocyanatotin(IV) units, forming a dinuclear structure. The SnIV atom in the molecule shows a distorted trans-trigonal–bipyramidal coordination with the methyl groups in equatorial positions. The molecule lies on a center of inversion, with the mid-point of the butyl chain coinciding with this symmetry element. In the crystal, weak C—Hπ interactions occur between pyridine rings of adjacent molecules.
metal-organic compounds
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The SnIV cation in the title compound, [Sn(CH3)2(C10H8NO)2], is N,O-chelated by two 2-methylquinolin-8-olate anions and coordinated by two methyl groups in a skew-trapezoidal bipyramidal geometry. In the molecule, the two quinoline ring systems are twisted to one another at 10.91 (18)°. The dimethyltin skeleton [C—Sn—C = 149.6 (2)°] is bent over the longer edge of the trapezoid that is defined by the four chelating atoms. Weak intermolecular C—HO hydrogen bonding occurs in the crystal.
organic compounds
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In the title compound, C15H14N2O2S, the central C2N2OS moiety is planar (r.m.s. deviation of fitted atoms = 0.0336 Å). This is ascribed to the formation of an S(6) loop stabilized by an intramolecular N—HO hydrogen bond; additional intramolecular N—HO and C—HS contacts are also noted. The dihedral angles between the central unit and the phenyl and benzene rings are 23.79 (7) and 29.52 (5)°, respectively. The thione S and ketone O atoms are mutually anti, as are the N—H H atoms; the O atoms lie to the same side of the molecule. Centrosymmetric eight-membered {HNC=S}2 synthons feature in the crystal packing. The resulting inversion dimers stack along the a axis and are connected into a three-dimensional structure by C—HO and C—Hπ interactions.
organic compounds
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In the title hemisolvate, C14H11ClN2OS·0.5CH2Cl2, an anti disposition is found for the thione and ketone atoms, as well as the N—H H atoms; the dichloromethane C atom lies on a twofold axis. The central chromophore (including the two adjacent ipso C atoms) is planar (r.m.s. deviation = 0.021 Å) owing to the presence of an intramolecular N—HO hydrogen bond, which closes an S(6) loop. Significant twists are evident in the molecule, the dihedral angles between the central moiety and the phenyl and benzene rings being 29.52 (7) and 40.02 (7)°, respectively. In the crystal, eight-membered {HNC= S}2 synthons with twofold symmetry form via N—HS hydrogen bonds. The dimers are connected into a supramolecular chain along [111] by C—HO interactions. The chains stack along the c axis, forming columns which define channels in which the occluded dichloromethane molecules reside.