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Volume 69 
Part 8 
Pages m439-m440  
August 2013  

Received 29 June 2013
Accepted 2 July 2013
Online 6 July 2013

Key indicators
Single-crystal X-ray study
T = 293 K
Mean [sigma](C-C) = 0.003 Å
R = 0.020
wR = 0.056
Data-to-parameter ratio = 13.3
Details
Open access

Diaquabis[2-(2-hydroxyethyl)pyridine-[kappa]2N,O]cobalt(II) dichloride

aUnité de Recherche Chimie de l'Environnement et Moléculaire Structurale 'CHEMS', Faculté des Sciences Exactes, Campus Chaabet Ersas, Université Constantine I, 25000 Constantine, Algeria
Correspondence e-mail: Lamiabendjeddou@yahoo.fr

In the title salt, [Co(C7H9NO)2(H2O)2]Cl2, the CoII cation, located on an inversion center, is N,O-chelated by two hydroxyethylpyridine ligands and coordinated by two water molecules in a distorted O4N2 octahedral geometry. In the crystal, the Cl- anions link with the complex cations via O-H...Cl hydrogen bonds, forming a three-dimensional supramolecular architecture. [pi]-[pi] stacking is observed between the pyridine rings of adjacent molecules [centroid-centroid distance = 3.5810 (11) Å].

Related literature

For applications of pyridine derivatives in the synthesis of coordination polymers, see: Sanudo et al. (2003[Sanudo, E. C., Wernsdorfer, W. & Christou, G. (2003). Polyhedron, 22, 2267-2271.]); Boskovic et al. (2002[Boskovic, C., Brechin, E. K. & Christou, G. (2002). J. Am. Chem. Soc. 124, 3725-3736.]). For related complexes containing a 2(2-hydroxyethyl)pyridine ligand, see: Kong et al. (2009[Kong, L.-Q., Ju, X.-P. & Li, D.-C. (2009). Acta Cryst. E65, m1518.]); Mobin et al. (2010[Mobin, S. M., Srivastava, A. K., Mathur, P. & Lahiri, G. K. (2010). Dalton Trans. 39, 1447-1449.]). For hydrogen-bond motifs, see: Bernstein et al. (1995[Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573.]).

[Scheme 1]

Experimental

Crystal data
  • [Co(C7H9NO)2(H2O)2]Cl2

  • Mr = 412.17

  • Orthorhombic, P b c n

  • a = 12.8911 (3) Å

  • b = 8.0049 (2) Å

  • c = 16.8757 (4) Å

  • V = 1741.44 (7) Å3

  • Z = 4

  • Mo K[alpha] radiation

  • [mu] = 1.31 mm-1

  • T = 293 K

  • 0.3 × 0.2 × 0.2 mm

Data collection
  • Bruker APEXII diffractometer

  • 9407 measured reflections

  • 1535 independent reflections

  • 1419 reflections with I > 2[sigma](I)

  • Rint = 0.015

Refinement
  • R[F2 > 2[sigma](F2)] = 0.020

  • wR(F2) = 0.056

  • S = 1.04

  • 1535 reflections

  • 115 parameters

  • H atoms treated by a mixture of independent and constrained refinement

  • [Delta][rho]max = 0.21 e Å-3

  • [Delta][rho]min = -0.22 e Å-3

Table 1
Selected bond lengths (Å)

Co1-O1 2.1210 (13)
Co1-O1W 2.0715 (13)
Co1-N1 2.1537 (14)

Table 2
Hydrogen-bond geometry (Å, °)

D-H...A D-H H...A D...A D-H...A
O1-H1...Cli 0.84 (2) 2.26 (2) 3.0625 (13) 162 (2)
O1W-H1W...Clii 0.932 (11) 2.145 (12) 3.0738 (13) 174.6 (19)
O1W-H2W...Cliii 0.835 (16) 2.285 (16) 3.1121 (14) 170.4 (15)
Symmetry codes: (i) [x, -y, z-{\script{1\over 2}}]; (ii) [-x+1, y, -z+{\script{1\over 2}}]; (iii) [x+{\script{1\over 2}}, y+{\script{1\over 2}}, -z+{\script{1\over 2}}].

Data collection: APEX2 (Bruker, 2006[Bruker (2006). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2006[Bruker (2006). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SIR2002 (Burla et al., 2005[Burla, M. C., Caliandro, R., Camalli, M., Carrozzini, B., Cascarano, G. L., De Caro, L., Giacovazzo, C., Polidori, G. & Spagna, R. (2005). J. Appl. Cryst. 38, 381-388.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012[Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.]); software used to prepare material for publication: WinGX (Farrugia, 2012[Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.]), Mercury (Macrae et al., 2006[Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E., Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006). J. Appl. Cryst. 39, 453-457.]) and POV-RAY (Persistence of Vision Team, 2004[Persistence of Vision Team (2004). POV-RAY. Persistence of Vision Raytracer Pty Ltd, Victoria, Australia. URL: http://www.povray.org/ .]).


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU5717 ).


Acknowledgements

This work was supported by the Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale (CHEMS), Université de Constantine 1, Algeria. Thanks are due to MESRS and ATRST (Ministère de l'Enseignement Supérieur et de la Recherche Scientifique et l'Agence Thématique de Recherche en Sciences et Technologie, Algeria) via the PNR program for financial support.

References

Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573.  [CrossRef] [ChemPort] [Web of Science]
Boskovic, C., Brechin, E. K. & Christou, G. (2002). J. Am. Chem. Soc. 124, 3725-3736.  [Web of Science] [CSD] [CrossRef] [PubMed] [ChemPort]
Bruker (2006). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Burla, M. C., Caliandro, R., Camalli, M., Carrozzini, B., Cascarano, G. L., De Caro, L., Giacovazzo, C., Polidori, G. & Spagna, R. (2005). J. Appl. Cryst. 38, 381-388.  [Web of Science] [CrossRef] [ChemPort] [IUCr Journals]
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.  [Web of Science] [CrossRef] [ChemPort] [IUCr Journals]
Kong, L.-Q., Ju, X.-P. & Li, D.-C. (2009). Acta Cryst. E65, m1518.  [CSD] [CrossRef] [IUCr Journals]
Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E., Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006). J. Appl. Cryst. 39, 453-457.  [Web of Science] [CrossRef] [ChemPort] [IUCr Journals]
Mobin, S. M., Srivastava, A. K., Mathur, P. & Lahiri, G. K. (2010). Dalton Trans. 39, 1447-1449.  [CSD] [CrossRef] [ChemPort] [PubMed]
Persistence of Vision Team (2004). POV-RAY. Persistence of Vision Raytracer Pty Ltd, Victoria, Australia. URL: http://www.povray.org/ .
Sanudo, E. C., Wernsdorfer, W. & Christou, G. (2003). Polyhedron, 22, 2267-2271.  [Web of Science] [CSD] [CrossRef] [ChemPort]
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [ChemPort] [IUCr Journals]


Acta Cryst (2013). E69, m439-m440   [ doi:10.1107/S1600536813018321 ]

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