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Bis{2-hydroxy-imino-N'-[1-(2-pyrid-yl)ethyl-idene]propanohydrazidato}zinc(II) dihydrate.

ABSTRACT: The title compound, [Zn(C(10)H(11)N(4)O(2))(2)]·2H(2)O, was prepared by the reaction between Zn(CH(3)COO)(2)·2H(2)O and 2-hydroxy-imino-N'-[1-(2-pyrid-yl)ethyl-idene]propano-hydrazide (Hpop). The central Zn(II) atom has a distorted tetra-gonal-bipyramidal coordination geometry formed by two amide O atoms and four N atoms of two azomethine and two pyridine groups. In the crystal, complex mol-ecules form layers parallel to the crystallographic b direction. The layers are connected by O-H⋯N and O-H⋯O hydrogen bonds involving the solvent water mol-ecules.

SUBMITTER: Moroz YS

PROVIDER: S-EPMC2979945 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Dichlorido{2-hydroxy-imino-N'-[1-(2-pyrid-yl)ethyl-idene]propanohydrazide-κN,N',O}zinc(II) hemihydrate.

Project description:The title compound, [ZnCl(2)(C(10)H(12)N(4)O(2))]·0.5H(2)O, was readily prepared by the reaction between ZnCl(2) and 2-hydroxy-imino-N'-[1-(2-pyrid-yl)ethyl-idene]propanohydrazide. The Zn atom has a distorted trigonal-bipyramidal geometry with two Cl atoms and one azomethine N atom in the equatorial plane and one pyridine N atom and one amide O atom in the axial positions. In the crystal structure, complex mol-ecules are connected in pairs by N-H⋯Cl hydrogen bonds, formed between the amide NH of one mol-ecule and the Cl atom of a neighboring one. Mol-ecular pairs are connected by hydrogen bonds involving the uncoordinated water mol-ecule, which lies on a twofold axis.

| S-EPMC2960173 | biostudies-literature

Bis{?-2-[2-(2-pyrid-yl)ethyl-imino-meth-yl]phenolato}bis-[azido-zinc(II)].

Project description:In the centrosymmetric title dinuclear zinc(II) compound, [Zn(2)(C(14)H(13)N(2)O)(2)(N(3))(2)], each Zn(II) ion has a slightly distorted trigonal bipyramidal geometry and is coordinated by two N atoms and one O atom from one Schiff base ligand, an O atom from the other Schiff base ligand, and another N atom from an azide ligand. The crystal structure involves inter-molecular C-H?N hydrogen bonds.

| S-EPMC2961521 | biostudies-literature

2-Hydroxy-imino-N'-[1-(2-pyrid-yl)ethyl-idene]propanohydrazide.

Project description:The title compound, C(10)H(12)N(4)O(2), features an intra-molecular N-H⋯N hydrogen bond formed between the imine NH and oxime N atoms. The oxime group and the amide C=O bond are anti to each other. In the crystal, mol-ecules are connected by O-H⋯O hydrogen bonds into supra-molecular zigzag chains along the c axis.

| S-EPMC2969988 | biostudies-literature

Tetra-?-benzoato-bis-{[trans-1-(2-pyrid-yl)-2-(4-pyrid-yl)ethyl-ene]zinc(II)}.

Project description:The paddle-wheel-type centrosymmetric dinuclear title complex, [Zn(2)(C(7)H(5)O(2))(4)(C(12)H(10)N(2))(2)], contains four bridging benzoate groups and two terminal trans-1-(2-pyrid-yl)-2-(4-pyrid-yl)ethyl-ene (L) ligands. The inversion center is located between the two Zn(II) atoms. The octa-hedral coordination around the Zn(II) atom, with four O atoms in the equatorial plane, is completed by an N atom of the L mol-ecule [Zn-N = 2.0198?(15)?Å] and by the second Zn(II) atom [Zn?Zn = 2.971?(8)?Å]. The Zn(II) atom is 0.372?Å out of the plane of the four coordinating O atoms.

| S-EPMC2972024 | biostudies-literature

Poly[[diaqua-{N-[1-(3-pyrid-yl)ethyl-idene]-4H-1,2,4-triazol-4-amine}zinc(II)] bis-(perchlorate)].

Project description:In the title compound, {[Zn(C(9)H(9)N(5))(2)(H(2)O)(2)](ClO(4))(2)}(n), the Zn(II) ion lies on an inversion center and is coordinated by two triazolyl N atoms and two pyridyl N atoms from four symmetry-related N-1-(3-pyrid-yl)ethyl-idene-4H-1,2,4-triazol-4-amine (L) ligands and two O atoms from coordinated water mol-ecules in a slightly distorted octa-hedral environment. Each L ligand bridges symmetry-related Zn(II) ions, forming a two-dimensional layer with a (4,4) grid. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds connect perchlorate counter-anions to the layers.

| S-EPMC2977576 | biostudies-literature

{2-Morpholino-N-[1-(2-pyrid-yl)ethyl-idene]ethanamine-κN,N',N''}bis-(thio-cyanato-κN)zinc(II).

Project description:The asymmetric unit of the title compound, [Zn(NCS)(2)(C(13)H(19)N(3)O)], contains two crystallographically independent mol-ecules. In each mol-ecule, the Zn(II) ion is five-coordinated by the N,N',N"-tridentate Schiff base and the N atoms of two thio-cyanate ligands in a distorted square-pyramidal geometry. The two mol-ecules differ mainly in the deviations from the ideal geometry, with τ values of 0.14 and 0.33. In the crystal, inter-molecular C-H⋯S hydrogen bonds are observed. An intra-molecular C-H⋯N hydrogen bond occurs in one of the independent mol-ecules.

| S-EPMC3051787 | biostudies-literature

(Ethyl-enediamine-?N,N')bis-[3-(2-pyridyl)-5-(4-pyrid-yl)-1,2,4-triazolato-?N,N]zinc(II) methanol solvate dihydrate.

Project description:The asymmetric unit of the title compound, [Zn(C(12)H(8)N(5))(2)(C(2)H(8)N(2))]·CH(3)OH·2H(2)O, contains a Zn(II) cation, octahedrally coordinated by two 3-(2-pyrid-yl)-5-(4-pyrid-yl)-1,2,4-triazolate anions, a chelating ethane-1,2-diamine mol-ecule, a methanol solvent mol-ecule, and two crystal water mol-ecules. In the crystal packing, complex mol-ecules are linked by hydrogen bonds into a two-dimensional layer.

| S-EPMC2968202 | biostudies-literature

Bis{N'-[1-(2-pyrid-yl)ethyl-idene-?N]benzohydrazidato-?N',O}nickel(II).

Project description:In the title complex, [Ni(C(14)H(12)N(3)O)(2)], the Ni(II) atom lies at the centre of a distorted octahedron formed by two tridentate hydrazone ligands. Inter-molecular hydrogen bonds of the type C-H?X (X = N, O) link the complexes into a two-dimensional network.

| S-EPMC2984020 | biostudies-literature

Bis(6-meth-oxy-2-{[tris-(hydroxy-meth-yl)-meth-yl]-imino-meth-yl}phenolato)-copper(II) dihydrate.

Project description:In the title compound, [Cu(C(12)H(16)NO(5))(2)]·2H(2)O, the Cu(II) ion adopts a trans-CuN(2)O(4) octa-hedral geometry arising from two N,O,O'-tridentate 6-meth-oxy-2-{[tris-(hydroxy-meth-yl)meth-yl]-imino-meth-yl}phenolate ligands. The Jahn-Teller distortion of the copper centre is unusally small. In the crystal structure, O-H?O hydrogen bonds, some of which are bifurcated, link the component species.

| S-EPMC2968260 | biostudies-literature

Di-?-chlorido-bis-{[2-({[2-(2-pyrid-yl)eth-yl](2-pyridylmeth-yl)amino}meth-yl)phenol]zinc(II)} bis-(perchlorate) dihydrate.

Project description:The title compound, [Zn(2)Cl(2)(C(20)H(21)N(3)O)(2)](ClO(4))(2)·2H(2)O, consists of a dinuclear Zn(II) cationic complex, two disordered perchlorate anions and two water mol-ecules as solvate. The [Zn(2)(?-Cl)(2)(HL)(2)](2+ )cation [HL is 2-({[2-(2-pyrid-yl)eth-yl](2-pyridylmeth-yl)amino}meth-yl)phenol] has a centrosymmetric structure with the Zn(II) ions in a distorted octa-hedral environment surrounded by an N(3)OCl(2) donor set. HL acts as a tetra-dentate ligand through three N atoms from one amine group and two pyridyl arms and one O atom from the phenolic arm. The three N-donor sites of the HL ligand are arranged in meridional fashion, with the pyridine rings coordinated in trans positions with respect to each other. Consequently, the amine and phenol groups are trans to the asymmetric di-?-chlorido exogenous bridges. A polymeric chain is formed along [010] by C(12)R(4) (2)(8) inter-molecular hydrogen bonding. The perchlorate anion is disordered and was modelled by two sites in a 0.345?(18):0.655?(18) ratio. Water-perchlorate O-H?O inter-actions form cyclic structures, while phenol-water O-H?O inter-actions generate an infinite chain. In addition, weak inter-molecular C-H??(Ph) inter-actions between pyridine donor and phenol acceptor groups of neighboring cations build a two-dimensional polymeric structure parallel to (110).

| S-EPMC2979697 | biostudies-literature

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