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. 2018 Nov 30;74(Pt 12):1899-1902.
doi: 10.1107/S2056989018016432. eCollection 2018 Dec 1.

Tetra-kis(4-benzoyl-pyridine-κ N)bis-(iso-thio-cyanato-κ N)manganese(II)

Carsten Wellm  1 , Christian Näther  1
Affiliations

Tetra-kis(4-benzoyl-pyridine-κ N)bis-(iso-thio-cyanato-κ N)manganese(II)

Carsten Wellm et al. Acta Crystallogr E Crystallogr Commun. .

Abstract

The asymmetric unit of the title compound, [Mn(NCS)2(C12H9NO)4], consists of one MnII cation located on a centre of inversion, one thio-cyanate anion and two 4-benzoyl-pyridine co-ligands. The MnII cation is octa-hedrally coordinated by two terminally N-bonded anionic ligands and four N-bonded 4-benzoyl-pyridine co-ligands within a slightly distorted octa-hedron. Individual complexes are linked by inter-molecular C-H⋯O hydrogen-bonding inter-actions into chains running along the c-axis direction. Simultaneous thermogravimetry and differential scanning calorimetry measurements reveal a decomposition in two separate steps, in each of which two co-ligands are removed. The compound obtained after the first step has the composition [Mn(NCS)2(C12H9NO)2] and is of unknown structure, before in the second step decomposition into [Mn(NCS)2] is observed. Magnetic susceptibility measurements show the MnII cations to be in the high-spin state, and that weak anti-ferromagnetic inter-actions between the complexes are present.

Keywords: crystal structure; discrete complex; hydrogen bonding; isotypism; mangan(II) thio­cyanate.

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Figures

Figure 1
Figure 1
View of a discrete complex with the atom labelling and displacement ellipsoids drawn at the 50% probability level. [Symmetry code: (i) −x, −y + 1, −z + 1.]
Figure 2
Figure 2
Crystal structure of the title compound showing a chain formed by inter­molecular C—H⋯O hydrogen bonding (dashed lines).
Figure 3
Figure 3
Crystal structure of the title compound in a view along the c axis. Inter­molecular C—H⋯O hydrogen bonds are shown as dashed lines.
See this image and copyright information in PMC

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