Bis{2-bromo-4-chloro-6-[(E)-(2,6-di­methyl­phen­yl)imino­meth­yl]phenolato-κ2N,O}cobalt(II)

Zhu, G.; Jiao, B.-J.

doi:10.1107/S1600536813003747

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 (C-C) = 0.004 Å
R = 0.044
wR = 0.119
Data-to-parameter ratio = 21.7
Details

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

Gang Zhu ^a ^* and Bao-Juan Jiao ^a

^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 Co^II 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); Carlton et al. (1995); Feng et al. (2008); Liu et al. (2009).

Experimental

Crystal data

[Co(C₁₅H₁₂BrClNO)₂]
M_r = 734.16
Monoclinic, P 2₁ /c
a = 11.608 (2) Å
b = 24.157 (4) Å
c = 11.354 (2) Å
= 114.380 (2)°
V = 2899.8 (9) Å³
Z = 4
Mo K radiation
= 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) T_min = 0.274, T_max = 0.683
32947 measured reflections
7718 independent reflections
6813 reflections with I > 2(I)
R_int = 0.047

Refinement

R[F² > 2(F²)] = 0.044
wR(F²) = 0.119
S = 1.00
7718 reflections
356 parameters
H-atom parameters constrained
_max = 0.54 e Å^-3
_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); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); 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.
Carlton, L. D., Schmith, V. D. & Brouwer, K. L. R. (1995). Prostaglandins, 50, 341-347.
Feng, Y., Liu, G., Tian, X. M., Wang, J. D. & Wang, W. (2008). Chin. J. Struct. Chem. 27, 455-460.
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.

metal-organic compounds

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