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Tetra-kis(pyridazine-?N)bis-(seleno-cyanato-?N)cobalt(II) pyridazine disolvate.

ABSTRACT: Reaction of cobalt(II) nitrate with potassium seleno-cyanate and pyridazine leads to single crystals of the title compound, [Co(NCSe)(2)(C(4)H(4)N(2))(4)]·2C(4)H(4)N(2), which is isotypic with its nickel(II) thio-cyanate analogue. The Co(2+) cations are coordinated by two N-bonded seleno-cyanate ligands and four N atoms from four pyridazine ligands into discrete complexes. The complexes are arranged into layers parallel to (001). These layers are separated by additional non-coordinating pyridazine ligands.

SUBMITTER: Wohlert S

PROVIDER: S-EPMC3393216 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature

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Tetra-kis(pyridazine-κN)bis-(seleno-cyanato-κN)cobalt(II) pyridazine disolvate.

Wöhlert Susanne S Wriedt Mario M Jess Inke I Näther Christian C

Acta crystallographica. Section E, Structure reports online 20120623 Pt 7

Reaction of cobalt(II) nitrate with potassium seleno-cyanate and pyridazine leads to single crystals of the title compound, [Co(NCSe)(2)(C(4)H(4)N(2))(4)]·2C(4)H(4)N(2), which is isotypic with its nickel(II) thio-cyanate analogue. The Co(2+) cations are coordinated by two N-bonded seleno-cyanate ligands and four N atoms from four pyridazine ligands into discrete complexes. The complexes are arranged into layers parallel to (001). These layers are separated by additional non-coordinating pyridazi ...[more]

PMID: 22807784

Similar Datasets

Tetra-kis(pyridazine-?N)bis-(seleno-cyanato-?N)nickel(II) pyridazine disolvate.

Project description:The reaction of nickel(II) nitrate with potassium seleno-cyanate and pyridazine leads to crystals of the title compound, [Ni(NCSe)(2)(C(4)H(4)N(2))(4)]·2C(4)H(4)N(2). The Ni(II) atom is coordinated by two terminal N-bonded seleno-cyanate anions and four pyridazine ligands within a slightly distorted octa-hedral geometry. The crystal structure contains two crystallographically independent pyridazine molecules in cavities of the structure, which are not coordinated to the metal centres. The structure is pseudo-C-centered due to the positioning of the discrete coordination complexes; the non-coordinating pyridazine molecules, however, break the C-centering. In the subcell, these ligands are disordered around centres of inversion, which do not coincide with the mid-point of the mol-ecules.

| S-EPMC3393220 | biostudies-literature

Tetra-kis(pyridazine-?N)bis-(thio-cyanato-?N)nickel(II) pyridazine disolvate.

Project description:The reaction of nickel(II) thio-cyanate with an excess of pyridazine leads to single crystals of the title compound, [Ni(NCS)(2)(C(4)H(4)N(2))(4)]·2C(4)H(4)N(2). The Ni(II) cations are coordinated by two terminal N-bonded thio-cyanate anions (trans) and four pyridazine ligands in a slightly distorted octa-hedral geometry. The discrete complexes are arranged into layers parallel to the ab plane which are separated by additional non-coordinated pyridazine ligands.

| S-EPMC3379122 | biostudies-literature

Tetra-kis(3-cyano-pyridine-κN)bis-(thio-cyanato-κN)cobalt(II) 1,4-dioxane disolvate.

Project description:In the crystal structure of the title compound, {[Co(NCS)(2)(C(6)H(4)N(2))(4)]·2C(4)H(8)O(2)}, the Co(II) cations are octa-hedrally coordinated by two terminal N-bonded thio-cyanate anions and four N-bonded 3-cyano-pyridine ligands. The asymmetric unit consists of one Co(II) cation, which is located on a special position with site symmetry 2/m, one thio-cyanate anion and one dioxane mol-ecule, located on a crystallographic mirror plane, as well as one 3-cyano-pyridine ligand in a general position. The crystal structure consists of discrete complexes of [Co(NCS)(2)(3-cyano-pyridine)(4)], as well as two non-coordinating 1,4-dioxane solvent mol-ecules which are disordered due to symmetry.

| S-EPMC3238779 | biostudies-literature

Bis(pyridazine-?N)bis-(seleno-cyanato-?N)zinc.

Project description:The asymmetric unit of the title compound, [Zn(NCSe)(2)(C(4)H(4)N(2))(2)], consists of one Zn(II) cation, located on a twofold rotation axis, one seleno-cyanate anion and one pyridazine ligand in general positions. The Zn(II) atom is coordinated by two N-atoms of two pyridazine ligands and two terminal N-bonded seleno-cyanate anions within a slightly distorted tetra-hedral coordination environment. In the crystal, discrete complex mol-ecules are arranged in layers parallel to the ac plane, with Zn(II)?Zn(II) distances of 8.0906?(6)?Å along the a axis and of 9.0490?(7) or 9.3604?(7)?Å along the c axis. The complex mol-ecules are further linked via weak Se?Se inter-actions, with Se?Se distances of 3.8235?(9)?Å.

| S-EPMC3089317 | biostudies-literature

Poly[tetra-kis-(seleno-cyanato-κN)bis-(methanol-κO)tris-(μ-pyrimidine-κN:N')dicobalt(II)].

Project description:In the title compound, [Co(2)(NCSe)(4)(C(4)H(4)N(2))(3)(CH(3)OH)(2)](n), the Co(II) ion is coordinated by three N-bonded pyrimidine ligands, two N-bonded seleno-cyanate anions and one O-bonded methanol mol-ecule in an octa-hedral coordination mode. The asymmetric unit consists of one Co(II) ion, one pyrimidine ligand, two seleno-cyanate anions and one methanol mol-ecule in general positions as well as one pyrimidine ligand located around a twofold rotation axis. In the crystal structure, the pyrimidine ligands bridge [Co(CNSe)(2)(CH(3)OH)] units into zigzag-like chains, which are further connected by pyrimidine ligands into layers parallel to (010).

| S-EPMC3007058 | biostudies-literature

Tetra-kis(ethyl pyridine-4-carboxyl-ate-?N)bis-(thio-cyanato-?N)cobalt(II).

Project description:In the title complex, [Co(NCS)(2)(C(8)H(9)NO(2))(4)], the Co(II) atom is six-coordinated by four N atoms from four ethyl pyridine-4-carboxyl-ate ligands in the equatorial plane and two N atoms of thio-cyanate ligands in the axial positions, showing a slightly distorted octa-hedral geometry. The structure exhibits disorder in one of the ethyl chains, which was refined using a two-site model with 0.70?(6):0.30?(6) occupancy.

| S-EPMC3379116 | biostudies-literature

Bis(dicyanamido-?N)tetra-kis-(pyridazine-?N)nickel(II).

Project description:Reaction of nickel(II) chloride with sodium dicyanamide and pyridazine leads to single crystals of the title compound, [Ni{N(CN)(2)}(2)(C(4)H(4)N(2))(4)], in which the Ni(II) cation is octa-hedrally coordinated by two dicyanamide anions and four pyridazine ligands into a discrete complex that is located on a center of inversion.

| S-EPMC3344413 | biostudies-literature

Poly[[tetra-kis-(μ-1,2-di-4-pyridyl-ethyl-ene-κN:N')tetra-kis-(seleno-cyanato-κN)dimanganese(II)] 1,2-di-4-pyridyl-ethyl-ene disolvate].

Project description:The crystal structure of the title compound, {[Mn(NCSe)(2)(C(12)H(10)N(2))(2)]·C(12)H(10)N(2)}(2n), consists of two crystallographically independent Mn cations, four seleno-cyanate anions, four 1,2-di-pyridylethylene (bpe) ligands (two of which are located on centers of inversion) and two bpe solvent molecules. Each manganese(II) cation is coordinated by two terminally N-bonded seleno-cyanate anions and four bpe ligands within a slightly distorted octa-hedron. The manganese(II) cations are linked by the bpe ligands into chains that are further connected by these ligands into layers. These layers are stacked, forming cavities in which additional bpe solvent molecules are embedded.

| S-EPMC3120600 | biostudies-literature

Bis(3-acetyl-pyridine-?N)diaqua-bis-(seleno-cyanato-?N)cobalt(II).

Project description:In the crystal structure of the title compound, [Co(NCSe)(2)(C(7)H(7)NO)(2)(H(2)O)(2)], the Co(2+) cation is coordinated by two seleno-cyanate anions, two 3-acetyl-pyridine ligands and two water mol-ecules within a slightly distorted CoN(4)O(2) octa-hedron. The asymmetric unit consists of one Co(2+) cation, which is located on a center of inversion, as well as one seleno-cyanate anion, one 3-acetyl-pyridine ligand and one water mol-ecule in general positions. Whereas one of the water H atoms makes a classical O-H?O hydrogen bond, the other shows a O-H?Se inter-action.

| S-EPMC3344418 | biostudies-literature

Bis[tetra-kis-(pyridin-2-yl)methane-κ(3) N,N',N'']cobalt(II) tetra-kis-(thio-cyanato-κN)cobaltate(II) methanol monosolvate.

Project description:The title complex, [Co(C21H16N4)2][Co(NCS)4]·CH3OH, consists of one [Co{C(py)4}2](2+) complex cation [C(py)4 = tetra-kis-(pyridin-2-yl)methane], one [Co(NCS)4](2-) complex anion and a methanol solvent mol-ecule. In the cation, the Co(II) atom is coordinated by six N atoms of two C(py)4 ligands in a distorted octa-hedral geometry. In the anion, the Co(II) atom is coordinated by the N atoms of four NCS(-) ligands in a distorted tetra-hedral geometry. The methanol mol-ecule is disordered and was modelled over three orientations (occupancies 0.8:0.1:0.1). There are two weak hydrogen-bond-like inter-actions between the methanol solvent mol-ecule and NCS(-) ligands of the anion [O⋯S = 3.283 (3) and 3.170 (2) Å].

| S-EPMC3998407 | biostudies-literature

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