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Diaqua-bis[5-(5-carboxy-2-pyridyl)tetra-zolato-κN,N]cadmium(II) dihydrate.

ABSTRACT: In the title complex, [Cd(C(7)H(4)N(5)O(2))(2)(H(2)O)(2)]·2H(2)O, the water-coordinated Cd(II) atom ( symmetry) is coordinated by four N atoms from two symmetry-related 3-carboxy-pyidyl-6-tetra-zolato ligands, forming a distorted octa-hedral complex. The uncoordinated water mol-ecules connect the mononuclear units into a layer structure through O-H⋯N and O-H⋯O hydrogen bonds; similar hydrogen bonds between coordinated water mol-ecules and anionic groups result in a three-dimensional structure.

SUBMITTER: Yin H

PROVIDER: S-EPMC2968998 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Diaqua-bis[5-(2-pyrid-yl)tetra-zolato-κN,N]iron(II).

Project description:The title complex, [Fe(C(6)H(4)N(5))(2)(H(2)O)(2)], was synthesized by the reaction of ferrous sulfate with 5-(2-pyrid-yl)-2H-tetra-zole (HL). The Fe(II) atom, located on a crystallographic center of inversion, is coordinated by four N-atom donors from two planar trans-related deprotonated L ligands and two O atoms from two axial water mol-ecules in a distorted octa-hedral geometry. The Fe(II) mononuclear units are further connected by inter-molecular O-H⋯N and C-H⋯O hydrogen-bonding inter-actions, forming a three-dimensional framework.

| S-EPMC2968821 | biostudies-literature

Diaqua-bis[5-(2-pyridylmeth-yl)tetra-zolato-κN,N]manganese(II).

Project description:The title complex, [Mn(C(7)H(6)N(5))(2)(H(2)O)(2)], was obtained by the in situ hydro-thermal reaction of MnCl(2) with 2-(2-pyrid-yl)acetonitrile in the presence of NaN(3). The Mn(II) atom, which is located on an inversion centre, has a distorted octa-hedral coordination geometry formed by two water mol-ecules and two chelating ligands. Inter-molecular hydrogen bonds and π-π inter-actions (3.452 Å) stabilize the crystal structure and lead to the formation of a three-dimensional network.

| S-EPMC2961924 | biostudies-literature

trans-Diaqua-bis[5-(1H-imidazol-4-yl-κN)-1H-tetra-zolato-κN]zinc(II).

Project description:In the title complex, [Zn(C(4)H(3)N(6))(2)(H(2)O)(2)], the metal centre lies on an inversion centre and displays a distorted octa-hedral ZnN(4)O(2) coordination geometry. The organic ligand is not planar; the dihedral angle between the imidazole and tetra-zole rings is 8.39 (9)°. An extended network of inter-molecular N-H⋯N and O-H⋯N hydrogen bonds stabilizes the crystal structure.

| S-EPMC2977593 | biostudies-literature

Diaqua-bis(2,5-di-4-pyridyl-1,3,4-thia-diazole-κN)bis-(thio-cyanato-κN)copper(II) dihydrate.

Project description:In the title compound, [Cu(NCS)(2)(C(12)H(8)N(4)S)(2)(H(2)O)(2)]·2H(2)O, the Cu atom is located on an inversion center and displays an octa-hedral geometry. Two N atoms of two different 2,5-di-4-pyridyl-1,3,4-thia-diazole ligands and two N atoms from two separate thio-cyanate mol-ecules form the equatorial plane, while two coordinated water mol-ecules are in axial positions. The crystal structure is consolidated by extensive hydrogen bonding, forming a two-dimensional network.

| S-EPMC2961085 | biostudies-literature

Diaqua-(2,5-di-4-pyridyl-1,3,4-thia-diazole-κN)bis-(thio-cyanato-κN)nickel(II) dihydrate.

Project description:In the title mononuclear complex, [Ni(NCS)(2)(C(12)H(8)N(4)S)(2)(H(2)O)(2)]·2H(2)O, the Ni(II) atom is located on an inversion center and is octa-hedrally coordinated by four N atoms from two 2,5-di-4-pyridyl-1,3,4-thia-diazole (bpt) ligands and two thio-cyanate mol-ecules forming the equatorial plane; the axial positions are occupied by two O atoms of coordinated water mol-ecules. O-H⋯O, O-H⋯N and O-H⋯S hydrogen bonds, involving the uncoordinated water molecules, result in the formation of a sheet structure developing parallel to (021).

| S-EPMC2959476 | biostudies-literature

Tetra-aqua-bis(3,5-di-4-pyridyl-1,2,4-triazolato-κN)cobalt(II) dihydrate.

Project description:The Co(II) atom in the title compound, [Co(C(12)H(8)N(5))(2)(H(2)O)(4)]·2H(2)O, lies on a center of inversion and is bonded to two N-heterocycles and to four water mol-ecules in a slightly distorted octahedral coordination. The coordinated and lattice water mol-ecules inter-act with the N-heterocycles through O-H⋯N hydrogen bonds, generating a three-dimensional supra-molecular architecture.

| S-EPMC2977553 | biostudies-literature

Tetra-aqua-bis(3,5-di-4-pyridyl-1H-1,2,4-triazolido)cadmium(II) dihydrate.

Project description:In the title compound, [Cd(C(12)H(8)N(5))(2)(H(2)O)(4)]·2H(2)O, the Cd(II) atom is located on an inversion center and is coordinated by the two N atoms [Cd-N = 2.278?(2)?Å] and four O atoms [Cd-O = 2.304?(2)-2.322?(2)?Å] in a distorted octa-hedral geometry. Inter-molecular O-H?O and O-H?N hydrogen bonds link the complex into a three-dimensional supra-molecular framework.

| S-EPMC2977399 | biostudies-literature

Diaqua-bis(pyrazine-2-carboxyl-ato-κN,O)manganese(II) dihydrate.

Project description:In the title compound, [Mn(C(5)H(3)N(2)O(2))(2)(H(2)O)(2)]·2H(2)O, the Mn(II) atom, lying on an inversion centre, has a distorted octa-hedral environment and the molecules are linked by O-H⋯O and N-H⋯O hydrogen bonds to form a three-dimensional supra-molecular structure.

| S-EPMC2961000 | biostudies-literature

Diaqua-dichlorido[5-(3-pyridinio)tetra-zolato-?N]copper(II) dihydrate.

Project description:The title compound, [CuCl(2)(C(6)H(5)N(5))(2)(H(2)O)(2)]·2H(2)O, was synthesized by hydro-thermal reaction of CuCl(2) with 3-(2H-tetra-zol-5-yl)pyridine. The Cu(II) cation, located on an inversion center, is coordinated by two Cl(-) ions, two N atoms from two 5-(3-pyridinio)tetra-zolate zwitterions and two O atoms from two water mol-ecules in a distorted octa-hedral geometry. In the crystal, mol-ecules are linked into a two-dimensional sheet parallel to (001) by N-H?N, O-H?N, O-H?O and O-H?Cl hydrogen bonds involving the pyridinium N atom, the Cl atoms and the coordinated and free water mol-ecules. The latter are disordered over two positions in a 0.54:0.46 ratio.

| S-EPMC2970193 | biostudies-other

Poly[bis-(μ(2)-5-n-butyl-tetra-zolato-κN:N)zinc(II)].

Project description:In the title complex, [Zn(C(5)H(9)N(4))(2)](n), the Zn(II) center is coordinated by four N atoms of different tetra-zolate ligands with a slightly distorted tetra-hedral geometry [Zn-N distances and N-Zn-N angles are in the ranges 1.991 (2)-2.007 (2) Å and 104.22 (8)-116.13 (8)°, respectively]. Each ligand links two Zn(II) atoms through its 1- and 4-position tetra-zole N atoms, forming a single, fully connected three-dimensional framework with a diamond-like topology. In the crystal structure, the Zn⋯Zn separations across each tetra-zole unit are 6.115 (2) and 6.134 (2) Å and the Zn⋯Zn⋯Zn angles are in the range 107.77 (8)-116.83 (8)°.

| S-EPMC2915080 | biostudies-literature

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