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. 2020 Jan 28;5(Pt 1):x200040.
doi: 10.1107/S2414314620000401. eCollection 2020 Jan.

Di-chlorido-bis-[2-(pyridin-2-yl-κ N)-1 H-benzimidazole-κ N 3]nickel(II) monohydrate

Connor S MacNeil  1 , Aloice O Ogweno  2 , Stephen O Ojwach  3 , Paul G Hayes  1
Affiliations

Di-chlorido-bis-[2-(pyridin-2-yl-κ N)-1 H-benzimidazole-κ N 3]nickel(II) monohydrate

Connor S MacNeil et al. IUCrdata. .

Erratum in

Abstract

In the title complex, [NiCl2(C12H9N3)2]·H2O, a divalent nickel atom is coordinated by two 2-(pyridin-2-yl)-1H-benzimidazole ligands in a slightly distorted octa-hedral environment defined by four N donors of two N,N'-chelating ligands, along with two cis-oriented anionic chloride donors. The title complex crystallized with a water mol-ecule disordered over two positions. In the crystal, a combination of O-H⋯Cl, O-H.·O and N-H⋯Cl hydrogen bonds, together with C-H⋯O, C-H⋯Cl and C-H⋯π inter-actions, links the complex mol-ecules and the water mol-ecules to form a supra-molecular three-dimensional framework. The title complex is isostructural with the cobalt(II) dichloride complex reported previously [Das et al. (2011 ▸). Org. Biomol. Chem. 9, 7097-7107].

Keywords: 2-(pyridin-2-yl)-1H-benzimidazole; C—H⋯π inter­actions; crystal structure; hydrogen bonding; nickel(II) complex; transfer hydrogenation.

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Figures

Figure 1
Figure 1
The mol­ecular structure of the title complex, with atom labeling. Displacement ellipsoids are drawn at the 50% probability level. Hydrogen bonds are shown as orange dashed lines and the O—H⋯π inter­action as a red arrow (Table 1 ▸).
Figure 2
Figure 2
Hydrogen-bonding networks involving, (a) the discorded water mol­ecule, and (b) the N—H⋯Cl hydrogen bonds. For clarity, only the H atoms involved in hydrogen bonding (dashed lines; Table 1 ▸) have been included.
Figure 3
Figure 3
A view along the c axis of the crystal packing of the title complex. For clarity, only the H atoms involved in hydrogen bonding (dashed lines; Table 1 ▸) have been included.
Figure 4
Figure 4
A view of the ADDSYM (PLATON; Spek, 2020 ▸) transformation of the cell dimensions of the isostructural compound di­chlorido­bis­[2-(pyridin-2-yl)-1H-benzimidazole]­cobalt(II) monohydrate (CSD refcode DACRIK; Das et al., 2011 ▸).
Figure 5
Figure 5
Reaction scheme for the synthesis of the title complex.
See this image and copyright information in PMC

References

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