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Catena-Poly[[dichloridomercury(II)]-?-{N-[(E)-pyridin-2-yl-methyl-idene-?N]pyridin-3-amine-?(2)N(1):N(3)}].

ABSTRACT: In the title coordination polymer, [HgCl(2)(C(11)H(9)N(3))](n), the Hg(II) ion is coordinated by three N atoms from two N-[(E)-pyridin-2-yl-methyl-idene]pyridin-3-amine (L) ligands and two chloride anions in a distorted trigonal-bipyramidal geometry. The two pyridine rings in L form a dihedral angle of 50.0?(2)°. L ligands bridge adjacent HgCl(2) units into polymeric chains propagating in [010]. The crystal packing is further stabilized by weak inter-molecular C-H?Cl hydrogen bonds and ?-? inter-actions between the pyridine rings, with a centroid-centroid separation of 3.529?(9)?Å.

SUBMITTER: Mahmoudi A

PROVIDER: S-EPMC3470133 | biostudies-other | 2012 Oct

REPOSITORIES: biostudies-other

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catena-Poly[[dichloridomercury(II)]-μ-{N-[(E)-pyridin-2-yl-methyl-idene-κN]pyridin-3-amine-κ(2)N(1):N(3)}].

Mahmoudi Ali A Dehghanpour Saeed S Najafi Leila L Khalafbeigi Mohammad M

Acta crystallographica. Section E, Structure reports online 20120905 Pt 10

In the title coordination polymer, [HgCl(2)(C(11)H(9)N(3))](n), the Hg(II) ion is coordinated by three N atoms from two N-[(E)-pyridin-2-yl-methyl-idene]pyridin-3-amine (L) ligands and two chloride anions in a distorted trigonal-bipyramidal geometry. The two pyridine rings in L form a dihedral angle of 50.0 (2)°. L ligands bridge adjacent HgCl(2) units into polymeric chains propagating in [010]. The crystal packing is further stabilized by weak inter-molecular C-H⋯Cl hydrogen bonds and π-π inter ...[more]

PMID: 23125577

Similar Datasets

catena-Poly[[[iodidocopper(I)]-{?-N-[(pyridin-2-yl-?N)methyl-idene]pyridin-3-amine-?(2)N(3):N(1)}] acetonitrile hemisolvate].

Project description:In the asymmetric unit of the title polymeric complex, {[CuI(C(11)H(9)N(3))]·0.5CH(3)CN}(n), there are two Cu(I) atoms, two N-[(pyridin-2-yl-?N)methyl-idene]pyridin-3-amine (PyPy) ligands and two I atoms. Both Cu(I) atoms have a distorted tetra-hedral geometry, each being coordinated by one I atom, two N atoms of one PyPy ligand and one N atom from an adjacent PyPy ligand. In the crystal, infinite helical chains of [Cu(2)(PyPy)(2)](n) are formed propagating along the b axis. These chains are linked via weak C-H?I hydrogen bonds and ?-? stacking inter-actions [shortest centroid-centroid distance = 3.2727?(14)?Å]. During the refinement, electron-density peaks were located that were believed to be highly disordered solvent mol-ecules (possibly acetonitrile). The SQUEEZE option in PLATON [Spek (2009 ?). Acta Cryst. D65, 148-155] indicated there were solvent cavities with a total volume of 196?Å(3) containing approximately 60 electrons per unit cell, which equated to one mol-ecule of acetonitrile per asymmetric unit.

| S-EPMC3470156 | biostudies-literature

Poly[bis-{μ-N'-[(pyridin-4-yl)methyl-idene]benzohydrazidato}copper(II)].

Project description:In the title complex, [Cu(C13H10N3O)2] n , the copper(II) cation is located on a crystallographic inversion centre and adopts an elongated octa-hedral coordination geometry with the equatorial plane provided by trans-arranged bis-N,O-chelating acyl-hydrazine groups from two ligands and the apices by the N atoms of two pyridine rings belonging to symmetry-related ligands. The ligand adopts a Z conformation about the C=N double bond. The dihedral angle between the pyridine and phenyl rings is 2.99 (13)°. An intra-ligand C-H⋯N hydrogen bond is observed. In the crystal, each ligand bridges two adjacent metal ions, forming a (4,4) grid layered structure. π-π stacking inter-actions [centroid-centroid distances in the range 3.569 (4)-3.584 (9) Å] involving rings of adjacent layers result in the formation of a three-dimensional supra-molecular network.

| S-EPMC3772419 | biostudies-literature

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].

Project description: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.

| S-EPMC3588782 | biostudies-literature

[(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

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

catena-Poly[[lead(II)-?-N'-[1-(pyridin-2-yl-?N)ethyl-idene]isonicotino-hydrazidato-?N',O:N] perchlorate].

Project description:The Pb(II) atom in the polymeric title compound, {[Pb(C(13)H(11)N(4)O)]ClO(4)}(n), is coordinated by the N'-[1-(pyridin-2-yl-?N)ethyl-idene]isonicotinohydrazidate ligand via its O,N,N'-donors and simultaneously bridged by a neighbouring ligand via the pyridin-2-yl N atom. The resultant supra-molecular chain is a zigzag along the a axis. The stereochemistry of the Pb(II) atom is defined by an N(3)OE donor set (E = lone pair of electrons), which results in a ?-trigonal-bipyramidal coordination with the O and pyridin-2-yl N atoms in axial positions. The dihedral angle between the pyridine rings of the ligand is 6.3?(3)°. The supra-molecular cationic chains are linked into a three-dimensional array via secondary Pb?O [3.133?(6) and 3.28?(7)?Å] and Pb?N [3.028?(4)?Å] inter-actions. Weak C-H?O inter-actions and aromatic ?-? stacking [centroid-centroid separation = 3.693?(2)?Å] also occur in the crystal.

| S-EPMC3238641 | biostudies-literature

Bis{(Z)-[(E)-2-(pyridin-2-yl-methyl-idene)hydrazin-1-yl-idene][(pyridin-2-yl)methyl-sulfan-yl]methane-thiol-ato}nickel(II).

Project description:The title compound, [Ni(C13H11N4S2)2], was obtained by the reaction of S-2-picolyldi-thio-carbazate and pyridine-2-carbaldehyde with nickel(II) acetate. The Ni(II) atom is located on a twofold rotation axis and is bonded to four N atoms at distances of 2.037 (8) and 2.109 (9) Å, and to two S atoms at a distance of 2.406 (3) Å, leading to a distorted octa-hedral coordination. The angle between the mean planes of the coordinating moieties of the two symmetry-related tridentate ligands is 83.3 (2)°. In the crystal, complex mol-ecules are linked by weak C-H⋯S hydrogen bonds, π-π inter-actions between the pyridine rings [centroid-centroid distance = 3.775 (9) Å] and C-H⋯π inter-actions. The hydrogen-bonding inter-actions lead to the formation of layers parallel to (010); π-π inter-actions link these layers into a three-dimensional network.

| S-EPMC3684885 | biostudies-literature

[Benz-yl(2-pyridyl-methyl-idene)amine]-dichloridomercury(II).

Project description:The Hg(II) ion in the title complex, [HgCl(2)(C(13)H(12)N(2))], adopts a distorted tetra-hedral geometry being coordinated by two Cl anions and by two N atoms of the benz-yl(2-pyridyl-methyl-ene)amine ligand. The Cl-Hg-Cl plane is twisted at 70.1 (1)° from the mean plane of the chelate ring. In the crystal structure, inter-molecular π-π inter-actions [centroid-centroid distance = 3.793 (3) Å] between the aromatic rings link the mol-ecules into zigzag chains extending along [010].

| S-EPMC2983418 | biostudies-literature

Crystal structure and characterization of a new copper(II) chloride dimer with meth-yl(pyridin-2-yl-methyl-idene)amine.

Project description:The new copper(II) complex, namely, di-?-chlorido-bis-{chlorido-[meth-yl(pyri-din-2-yl-methyl-idene)amine-?2 N,N']copper(II)}, [Cu2Cl4(C7H8N2)2], (I), with the ligand 2-pyridyl-methyl-N-methyl-imine (L, a product of Schiff base condensation between methyl-amine and 2-pyridine-carbaldehyde) is built of discrete centrosymmetric dimers. The coordination about the CuII ion can be described as distorted square pyramidal. The base of the pyramid consists of two nitro-gen atoms from the bidentate chelate L [Cu-N = 2.0241?(9), 2.0374?(8)?Å] and two chlorine atoms [Cu-Cl = 2.2500?(3), 2.2835?(3)?Å]. The apical position is occupied by another Cl atom with the apical bond being significantly elongated at 2.6112?(3)?Å. The trans angles of the base are 155.16?(3) and 173.79?(2)°. The Cu?Cu separation in the dimer is 3.4346?(3)?Å. In the crystal structure, the loosely packed dimers are arranged in stacks propagating along the a axis. The X-band polycrystalline 77?K EPR spectrum of (I) demonstrates a typical axial pattern characteristic of mononuclear CuII complexes. Compound (I) is redox active and shows a cyclic voltammetric response with E 1/2 = -0.037?V versus silver-silver chloride electrode (SSCE) assignable to the reduction peak of CuII/CuI in methanol as solvent.

| S-EPMC7274002 | 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

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