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Poly[[[?3-(E)-N-(pyridin-4-yl-methyl-idene)hy-droxy-laminato-?(3) O:N:N'][?2-(E)-N-(pyridin-4-yl-methyl-idene)hydroxyl-amine-?(2) N:N'][(E)-N-(pyridin-4-yl-methyl-idene-?N)hydroxyl-amine]-disilver(I)] nitrate].

ABSTRACT: The title coordination polymer, {[Ag2(C6H5N2O)(C6H6N2O)2]NO3} n , features a deprotonated N-(pyridin-4-yl-methyl-idene)hy-droxy-laminate anion and two neutral N-(pyridin-4-yl-methyl-idene)hydroxyl-amine mol-ecules in the asymmetric unit. The anion connects three Ag(I) 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-H?O hydrogen bonding is present between nitrate ions and layers, and also between adjacent layers.

SUBMITTER: Gao S

PROVIDER: S-EPMC3588782 | biostudies-literature |

REPOSITORIES: biostudies-literature

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[(E)-Oxido(pyridin-2-yl-methyl-idene)amine-?(2)N,N'][(E)-N-(pyridin-2-yl-methyl-idene)hydroxyl-amine-?(2)N,N']silver(I) perchlorate-bis-[(E)-N-(pyridin-2-yl-methyl-idene)hydroxyl-amine-?(2)N,N']silver(I) (1/1).

Project description:In the title salt co-crystal, [Ag(C(6)H(5)N(2)O)(C(6)H(6)N(2)O)]ClO(4)·[Ag(C(6)H(6)N(2)O)(2)], the asymmetric unit comprises a [Ag(LH)(2)](+) cation, a perchlorate anion and a neutral (LH)AgL mol-ecule, where LH is pyridine-2-carboxaldoxime. Both silver-containing species feature N,N'-chelating LH and L ligands, which define an N(4) donor set that is highly distorted [dihedral angles between AgC(2)N(2) chelate rings = 45.7?(3) and 44.3?(2)°, respectively] owing, in part, to the close approach of a neighbouring Ag atom, leading to an argentophilic inter-action [Ag?Ag = 3.1868?(11)?Å]. The mol-ecular conformations are stabilized by intra-molecular O-H?O hydrogen bonds. In the crystal, O-H?O inter-actions lead to supra-molecular chains along [010]. Chains aggregate into layers in the ab plane, defining channels along [100] in which reside the perchlorate anions; the latter are disordered over two overlapped orientations in a 50:50 ratio.

| S-EPMC3344365 | biostudies-literature

Trichloridotris{N-[phen-yl(pyridin-2-yl)-methyl-idene]hydroxyl-amine-?N,N'}samarium(III).

Project description:The Sm(III) ion in the title compound, [SmCl(3)(C(12)H(10)N(2)O)(3)], shows a coordination number of nine with a slightly distorted tricapped trigonal prismatic geometry based on a Cl(3)N(6) donor set. The mol-ecular structure is stabilized by three intra-molecular O-H?Cl hydrogen bonds.

| S-EPMC3297284 | biostudies-literature

Trichloridotris{N-[phen-yl(pyridin-2-yl)methyl-idene]hydroxyl-amine-?(2)N,N'}neodymium(III).

Project description:In the title compound, [NdCl(3)(C(12)H(10)N(2)O)(3)], the central Nd(III) ion is nine-coordinated by six N atoms from three bidentate chelate N-[phen-yl(pyridin-2-yl)methyl-idene]hydroxyl-amine ligands and three Cl(-) ions, and displays a distorted tricapped trigonal prismatic geometry. The complex mol-ecules are stabilized by intra-molecular O-H?Cl hydrogen bonds.

| S-EPMC3344326 | biostudies-literature

Bis[(E)-N-(pyridin-3-yl-methyl-idene)hydroxyl-amine-?N(1)]silver(I) perchlorate.

Project description:Each of the ions in the title salt, [Ag(C(6)H(6)N(2)O)(2)]ClO(4), is completed by the application of crystallographic twofold symmetry. The Ag(I) atom is coordinated by two pyridine N atoms in an almost linear fashion [N-Ag-N = 170.0?(2)°], with the T-shaped coordination geometry being completed by a weakly associated perchlorate-O atom. Supra-molecular zigzag chains along [100] mediated by O-H?N hydrogen bonds [as parts of R(2) (2)(6) loops] feature in the crystal packing. The perchlorate O atoms are disordered over two sets of sites in a statistical ratio.

| S-EPMC3379077 | biostudies-literature

Bis[?-(E)-N-(pyridin-3-yl-methyl-idene)hy-droxy-amine]-?(2) N (1):N (3);?(2) N (3):N (1)-bis-{[(E)-N-(pyridin-3-yl-methyl-idene-?N)hy-droxy-amine]-silver(I)} dinitrate.

Project description:In the centrosymmetric dinuclear title Ag(I) compound, [Ag2(C6H6N2O)4](NO3)2, the aromatic amine-coordinated Ag(I) atom is further bridged by two hydroxyl-amine mol-ecules 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 mol-ecules via O-H?O hydrogen bonds, generating a chain running along the a-axis direction.

| S-EPMC3588788 | biostudies-literature

(Tris{2-[(5-hy-droxy-pyridin-2-yl-?N)methyl-idene-imino-?N]eth-yl}amine)-zinc dinitrate.

Project description:In the complex cation of the title compound, [Zn(C(24)H(27)N(7)O(3))](NO(3))(2), the tripodal tris-{[2-(5-hy-droxy-pyridin-2-yl)methyl-idene-imino]-eth-yl}amine ligand is coordin-ated to the Zn atom through the three pyridine and three imino N atoms. The coordination sphere of the Zn atom is based on an octahedron with a significant distortion towards trigonal prismatic, the twist angle being 45.58?(9)°. The crystal packing is formed by L and D anti-podes arranged in layers disposed parallel to the b axis. Strong O-H?O hydrogen bonding exists between the hy-droxy groups of the ligand and the nitrate anion.

| S-EPMC3238702 | biostudies-literature

(Nitrato-?(2) O,O')bis-[(E)-N-(pyridin-4-yl-methyl-idene-?N)hy-droxy-amine]-silver(I).

Project description:In the mononuclear title compound, [Ag(NO3)(C6H6N2O)2], the Ag(I) atom is located on a twofold rotation axis and the nitrate-chelated Ag(I) atom is further coordinated by two aromatic N atoms of hydroxyl-amine ligands in a distorted tetra-hedral 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 hy-droxy groups of the hydroxyl-amine ligands by O-H?O hydrogen bonds, generating a chain running along the b axis.

| S-EPMC3588783 | biostudies-literature

Crystal structure of (pyridin-2-yl-methyl-idene)(tri-phenyl-meth-yl)amine.

Project description:The title Schiff base compound, C25H20N2, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. In both mol-ecules, the imine group is approximately coplanar with the pyridine ring, with N-C-C-N torsion angles of 170.1?(3) and -172.0?(3)?Å. In the crystal, A and B dimers are linked by pairs of C-H?? inter-actions and further C-H?? bonds link the dimers into a three-dimensional network.

| S-EPMC4257176 | biostudies-literature

N-[(1E)-5-(3-Chloro-phen-yl)-3-methyl-cyclo-hex-2-en-1-yl-idene]hydroxyl-amine.

Project description:The whole of the title mol-ecule, C13H14ClNO, is disordered over two sets of sites with a refined occupancy ratio of 0.560?(6):0.440?(6). The oxime group having a C=N double bond adopts an E conformation. The dihedral angles between the rings (all atoms) are 89.5?(5) (major componenent) and 88.0?(6)° (minor component).

| S-EPMC3588505 | biostudies-literature

Bis[?-N-(pyridin-2-ylmeth-yl)pyridin-2-amine-?N:N']disilver(I) bis(trifluoro-methane-sulfonate).

Project description:In the binuclear title compound, [Ag(2)(C(11)H(11)N(3))(2)](CF(3)O(3)S)(2), the complex cation is centrosymmetric, with the unique Ag(+) cation coordinated by two pyridine N atoms from two symmetry-related N-(pyridin-2-ylmeth-yl)pyridin-2-amine ligands in a geometry slightly distorted from linear [N-Ag-N 161.02?(7)°]. This set-up leads to the formation of a 14-membered cyclic dimer. The two pyridine rings coordinated to the Ag(+) cation are tilted by 80.19?(7)° with respect to each other. Inter-molecular N-H?O hydrogen-bonding inter-actions between the cyclic dimer and the anion exist. A two-dimensional network parallel to the ac plane is constructed by three weak Ag?(O,N) inter-actions as well as an F?F contact of 2.890?(4)?Å.

| S-EPMC3238672 | biostudies-literature

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