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Acta Crystallogr Sect E Struct Rep Online. 2014 Feb 15;70(Pt 3):m96-7. doi: 10.1107/S160053681400289X. eCollection 2014.

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

Author information

  • 1Department of Chemistry, Faculty of Science, Fukuoka University, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan.
  • 2Institute of Natural Sciences, Senshu University, Higashimita, Tama-ku, Kanagawa 214-8580, Japan.
  • 3Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, Kurokami, Kumamoto 860-8555, Japan.
  • 4Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.


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].

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