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1-Butyl-pyridinium bis-(1,2-dicyano-ethene-1,2-dithiol-ato)nickelate(III).

ABSTRACT: The Ni(III) atom in the anion of the title complex, (C(9)H(14)N)[Ni(C(4)N(2)S(2))(2)], is coordinated by four S atoms of two maleonitrile-dithiol-ate ligands, and exhibits a square-planar coordination geometry.

SUBMITTER: Duan HB

PROVIDER: S-EPMC3246985 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:In the ionic title complex, (C(13)H(11)N(2))(2)[Ni(C(4)N(2)S(2))(2)], the Ni(II) ion is located on an inversion centre so the asymmetric unit contains one-half [Ni(mnt)(2)](2-) dianion (mnt(2-) is maleonitrile-dithiolate) and one 1-(3-cyano-benz-yl)pyridinium cation ([CNBzPy](+)). The Ni(II) ion in the [Ni(mnt)(2)](2-) anion is coordinated by four S atoms of two mnt(2-) ligands, and exhibits square-planar coordination geometry. In the [CNBzPy](+) cation, the benzene and pyridine rings are twisted with respect to the C/C/N plane incorporating the methyl-ene C atom that links them. The crystal structure is stabilized by Coulombic inter-actions.

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1-(2-Fluoro-benzyl-ideneamino)pyridinium bis-(1,2-dicyano-ethene-1,2-dithiol-ato)nickelate(II).

Project description:In the title complex, (C(12)H(10)FN(2))(2)[Ni(C(4)N(2)S(2))(2)], the anion lies on an inversion center with the Ni(II) ion coordinated by four S atoms in a slightly distorted square-planar environment. In the unique cation, the dihedral angle between the benzene and pyridine rings is 7.1 (2) Å.

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Project description:The asymmetric unit of the title ion-pair complex, (C(9)H(12)NO(2))(2)[Ni(C(4)N(2)S(2))(2)], contains two 1-(eth-oxy-carbonyl-meth-yl)pyridinium cations and one bis-(1,2-dicyano-ethene-1,2-dithiol-ato)nickelate(II) dianion, which exhibits a slightly distorted square-planar coordination geometry. In the crystal, the cations are linked by strong C-H⋯O hydrogen bonds into C(6) chains along [100]. The cations and anions are linked into a three-dimensional architecture by weak C-H⋯N and C-H⋯S inter-actions.

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Bis[1-(4-cyano-benz-yl)pyrazinium] bis-(1,2-dicyano-ethene-1,2-dithiol-ato)nickelate(II).

Project description:The asymmetric unit of the title complex, (C(12)H(10)N(3))(2)[Ni(C(4)N(2)S(2))(2)], consists of one 1-(4-cyano-benz-yl)pyrazinium cation and one half of an [Ni(mnt)(2)](2-) dianion (mnt(2-) is 1,2-dicyano-ethene-1,2-dithiol-ate). The Ni(2+) ion is located on an inversion center and is coordinated by four S atoms from two mnt(2-) ligands, exhibiting a square-planar coordination geometry. The cation adopts a conformation where both the pyrazine ring and the benzene ring are twisted with respect to the C-C-N reference plane by 16.5?(2) and 69.8?(1)°, respectively.

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Bis(3,5,7-triaza-1-azoniatricyclo-[3.3.1.1]deca-ne) bis-(1,2-dicyano-ethene-1,2-dithiol-ato)nickelate(II).

Project description:The asymmetric unit of the title complex, (C(6)H(13)N(4))(2)[Ni(C(4)N(2)S(2))(2)], comprises one 1-azonia-3,5,7-triaza-tricyclo-[3.3.1.1(3,7)]decane cation and one half of an [Ni(mnt)(2)](2-) (mnt(2-) is maleonitrile-dithiol-ate or 1,2-dicyano-ethene-1,2-dithiol-ate) dianion. The Ni(2+) ion is located on a center of inversion and is coordinated by four S atoms from two mnt(2-) ligands in a square-planar coordination mode. Inter-molecular N-H?N hydrogen-bond inter-actions link one anion and two cations in the crystal structure.

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Bis(1-amino-4-methyl-pyridinium) bis-(1,2-dicyano-ethene-1,2-dithiol-ato-?S,S')nickelate(II).

Project description:The asymmetric unit of the title compound, (C(6)H(9)N(2))(2)[Ni(C(4)N(2)S(2))(2)], contains one half of an [Ni(mnt)(2)](2-) anion (mnt is maleonitrile-dithiol-ate or 1,2-dicyano-ethene-1,2-dithiol-ate) and one 1-amino-4-methyl-pyridinium cation. The Ni(II) atom is located on an inversion centre. In the crystal structure, inter-molecular N-H?N hydrogen bonds link the mol-ecules.

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3-Butyl-1-methyl-1H-imidazol-3-ium bis-(1,2-dicyano-ethene-1,2-dithiol-ato-?S,S')nickel(III).

Project description:In the title compound, (C(8)H(15)N(2))[Ni(C(4)N(2)S(2))(2)], the Ni(III) atom is coordinated by four S atoms of two maleonitrile-dithiol-ate ligands and exhibits a distorted square-planar geometry. In the crystal, the cations and anions are connected alternately by weak inter-molecular C-H?N hydrogen bonds, forming a zigzag chain along [201].

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Bis(4-dimethyl-amino-1-ethyl-pyridinium) bis-(1,2-dicyano-ethene-1,2-dithiol-ato-?(2)S,S')nickelate(II).

Project description:The asymmetric unit of the title complex, (C(9)H(15)N(2))(2)[Ni(C(4)N(2)S(2))(2)], comprises one 4-dimethyl-amino-1-ethyl-pyri-din-ium cation and one half of a [Ni(mnt)(2)](2-) (mnt(2-) = maleo-nitrile-dithiol-ate) anion; the complete anion is generated by the application of a centre of inversion. The Ni(II) ion is coordinated by four S atoms of two mnt(2-) ligands and exhibits a square-planar coordination geometry.

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1-(4-Iodo-benz-yl)-3-methyl-pyridinium bis-(benzene-1,2-dithiol-ato)nickelate(III).

Project description:The asymmetric unit of the title compound, (C(13)H(13)IN)[Ni(C(6)H(4)S(2))(2)], contains half each of two centrosymmetric anions and a single cation in a general position. In the anions, the Ni(III) ions are surrounded by four S atoms in a distorted square-planar geometry. In the crystal, the anions exhibit two different packing modes by stacking along the a axis in face-to-face and side-by-side fashions. Inter-ionic C-H?S hydrogen bonds and ?-? stacking inter-actions [centroid-centroid distance = 3.6947?(5)?Å] are observed.

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1-(4-Cyano-benz-yl)-3,5-dimethyl-pyridinium bis-(benzene-1,2-dithiol-ato)nickelate(III).

Project description:The asymmetric unit of the title compound, (C(15)H(15)N(2))[Ni(C(6)H(4)S(2))(2)], contains half each of two independent centrosymmetric anions and a single cation in a general position. The Ni(III) ions are coordinated by four S atoms in a square-planar geometry. The anions exhibit two packing modes, viz. stacked along the a axis in a face-to-face fashion with an alternate arrangement of anions and cations, and stacked in a side-by-side fashion, forming ribbons parallel to (011).

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