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Volume 69 
Part 3 
Page m156  
March 2013  

Received 28 January 2013
Accepted 6 February 2013
Online 20 February 2013

Key indicators
Single-crystal X-ray study
T = 153 K
Mean [sigma](C-C) = 0.004 Å
R = 0.044
wR = 0.119
Data-to-parameter ratio = 21.7
Details
Open access

Bis{2-bromo-4-chloro-6-[(E)-(2,6-dimethylphenyl)iminomethyl]phenolato-[kappa]2N,O}cobalt(II)

aSchool of Chemistry and Chemical Engineering, Xi'an University of Arts and Science, Xi'an, Shaanxi 710065, People's Republic of China
Correspondence e-mail: zhugang80@163.com

In the title complex, [Co(C15H12BrClNO)2], the CoII ion is coordinated by two N,O-bidentate 2-bromo-4-chloro-6-[(E)-(2,6-dimethylphenyl)iminomethyl]phenolate ligands, generating a squashed CoN2O2 tetrahedral coordination geometry. The dihedral angles between the aromatic rings in the ligands are 82.60 (14) and 71.79 (14)°. The complex has approximate local noncrystallographic twofold symmetry. In the crystal, weak aromatic [pi]-[pi] stacking is observed [centroid-centroid separation = 3.6434 (18) Å].

Related literature

For background to Schiff bases, see: Billson et al. (2000[Billson, T. S., Crane, J. D., Fox, O. D. & Heath, S. L. (2000). Inorg. Chem. Commun. 3, 718-720.]); Carlton et al. (1995[Carlton, L. D., Schmith, V. D. & Brouwer, K. L. R. (1995). Prostaglandins, 50, 341-347.]); Feng et al. (2008[Feng, Y., Liu, G., Tian, X. M., Wang, J. D. & Wang, W. (2008). Chin. J. Struct. Chem. 27, 455-460.]); Liu et al. (2009[Liu, H., Huang, J. L. & Feng, Y. L. (2009). Chin. J. Struct. Chem. 28, 718-722.]).

[Scheme 1]

Experimental

Crystal data
  • [Co(C15H12BrClNO)2]

  • Mr = 734.16

  • Monoclinic, P 21 /c

  • a = 11.608 (2) Å

  • b = 24.157 (4) Å

  • c = 11.354 (2) Å

  • [beta] = 114.380 (2)°

  • V = 2899.8 (9) Å3

  • Z = 4

  • Mo K[alpha] radiation

  • [mu] = 3.56 mm-1

  • T = 153 K

  • 0.49 × 0.27 × 0.12 mm

Data collection
  • Rigaku AFC10/Saturn724+ diffractometer

  • Absorption correction: multi-scan (CrystalClear; Rigaku, 2008[Rigaku (2008). CrystalClear. Rigaku Corporation, Tokyo, Japan.]) Tmin = 0.274, Tmax = 0.683

  • 32947 measured reflections

  • 7718 independent reflections

  • 6813 reflections with I > 2[sigma](I)

  • Rint = 0.047

Refinement
  • R[F2 > 2[sigma](F2)] = 0.044

  • wR(F2) = 0.119

  • S = 1.00

  • 7718 reflections

  • 356 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.54 e Å-3

  • [Delta][rho]min = -0.63 e Å-3

Table 1
Selected bond lengths (Å)

Co1-O2 1.9006 (18)
Co1-O1 1.9144 (18)
Co1-N2 1.983 (2)
Co1-N1 2.000 (2)

Data collection: CrystalClear (Rigaku, 2008[Rigaku (2008). CrystalClear. Rigaku Corporation, Tokyo, Japan.]); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXL97.


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB7032 ).


Acknowledgements

The authors are grateful for financial support from the Science & Technology Project Foundation of Xi'an (grant No. CX12189WL19), the Special Foundation of the Education Department of Shaanxi Province (grant No. 11 J K0577) and the Key Disciplinary Areas of Analytical Chemistry of Shaanxi Province, People's Republic of China.

References

Billson, T. S., Crane, J. D., Fox, O. D. & Heath, S. L. (2000). Inorg. Chem. Commun. 3, 718-720.  [ISI] [CSD] [CrossRef] [ChemPort]
Carlton, L. D., Schmith, V. D. & Brouwer, K. L. R. (1995). Prostaglandins, 50, 341-347.  [CrossRef] [ChemPort] [PubMed]
Feng, Y., Liu, G., Tian, X. M., Wang, J. D. & Wang, W. (2008). Chin. J. Struct. Chem. 27, 455-460.  [ChemPort]
Liu, H., Huang, J. L. & Feng, Y. L. (2009). Chin. J. Struct. Chem. 28, 718-722.
Rigaku (2008). CrystalClear. Rigaku Corporation, Tokyo, Japan.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]


Acta Cryst (2013). E69, m156  [ doi:10.1107/S1600536813003747 ]

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