Crystal structure of bis(1-hexyl-N,N-dimethylpyridinium) bis(maleonitriledithiolato)nickelate(II)
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چکیده
The asymmetric unit of the title compound, (C13H23N2)2[Ni(C4N2S2)2], consists of a 1-hexyl-N,N-di-methyl-pyridinium cation and one half of a [Ni(mnt)2](2-) dianion (mnt(2-) = maleo-nitrile-dithiol-ate) in which the Ni(2+) cation lies on a crystallographic inversion centre. The square-planar coordination about Ni(2+) comprises four S atoms from two bidentate chelate mnt(2-) ligands [Ni-S = 2.1791 (9) and 2.1810 (8) Å, and S-Ni-S bite angle = 91.93 (3)°]. The hydro-carbon chains of cations show trans-planar conformations and lie approximately parallel to the long mol-ecular axis of the [Ni(mnt)2](2-) anions, giving stacks along the c axis. The anions and cations form layers lying parallel to the bc plane. Only weak C-H⋯Ni and C-H⋯π associations are present in the crystal packing.
منابع مشابه
Bis[1-(2,6-dichlorobenzyl)-3-methylpyrazin-1-ium] bis(maleonitriledithiolato)nickelate(II)
In the crystal structure of the title compound, (C(12)H(11)Cl(2)N(2))(2)[Ni(C(4)N(2)S(2))(2)], the Ni(II) complex dianion is located on an inversion centre. The Ni(II) atom is coordinated by four S atoms in a square-planar geometry. In the cation, the dihedral angle between the benzene and pyrazine rings is 85.2 (2)°.
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