Dibromido(6,6′-dimethyl-2,2′-bipyridine-κ2N,N′)cobalt(II)

Shirvan, S.A.; Haydari Dezfuli, S.; Khazali, F.; Aghajeri, M.; Borsalani, A.

doi:10.1107/S1600536812041980

Volume 68
Part 11
Page m1363
November 2012

Received 6 October 2012
Accepted 7 October 2012
Online 13 October 2012

Key indicators
Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.009 Å
R = 0.045
wR = 0.089
Data-to-parameter ratio = 18.0
Details

Dibromido(6,6'-dimethyl-2,2'-bipyridine-²N,N')cobalt(II)

Sadif A. Shirvan,^a ^* Sara Haydari Dezfuli,^a Fereydoon Khazali,^b Manouchehr Aghajeri ^c and Ali Borsalani ^c

^aDepartment of Chemistry, Omidieh Branch, Islamic Azad University, Omidieh, Iran,^bDepartment of Petroleum Engineering, Omidieh Branch, Islamic Azad University, Omidieh, Iran, and ^cDepartment of Chemical Engineering, Omidieh Branch, Islamic Azad University, Omidieh, Iran
Correspondence e-mail: sadifchemist@hotmail.com

In the title compound, [CoBr₂(C₁₂H₁₂N₂)], the Co^II atom is four-coordinated in a distorted tetrahedral geometry by two N atoms from a 6,6'-dimethyl-2,2'-bipyridine ligand and by two terminal Br atoms. Intermolecular C-HBr hydrogen bonds and [pi] - [pi] stacking between the pyridine rings in the bc plane [centroid-centroid distance = 3.725 (3) Å] are present in the crystal structure.

Related literature

For related structures, see: Akbarzadeh Torbati et al. (2010); Alizadeh et al. (2011, 2009); Itoh et al. (2005); Kou et al. (2008); Onggo et al. (2005); Shirvan & Haydari Dezfuli (2012).

Experimental

Crystal data

[CoBr₂(C₁₂H₁₂N₂)]
M_r = 402.97
Monoclinic, P 2₁ /c
a = 7.6550 (6) Å
b = 10.2577 (9) Å
c = 18.0030 (16) Å
= 95.779 (7)°
V = 1406.5 (2) Å³
Z = 4
Mo K radiation
= 6.88 mm^-1
T = 298 K
0.30 × 0.24 × 0.18 mm

Data collection

Bruker APEXII CCD area detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2001) T_min = 0.149, T_max = 0.302
7259 measured reflections
2766 independent reflections
1753 reflections with I > 2(I)
R_int = 0.068

Refinement

R[F² > 2(F²)] = 0.045
wR(F²) = 0.089
S = 0.95
2766 reflections
154 parameters
H-atom parameters constrained
_max = 0.51 e Å^-3
_min = -0.56 e Å^-3

Table 1
Selected bond lengths (Å)

Co1-N1	2.044 (4)
Co1-N2	2.037 (4)
Co1-Br1	2.3594 (10)
Co1-Br2	2.3588 (10)

Table 2
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
C8-H8Br1ⁱ	0.93	2.92	3.696 (5)	142
C12-H12CBr1ⁱⁱ	0.96	2.89	3.847 (6)	172
Symmetry codes: (i) -x, -y+1, -z; (ii) $[-x, y-{\script{1\over 2}}, -z+{\script{1\over 2}}]$ .

Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU5630 ).

Acknowledgements

We are grateful to the Islamic Azad University, Omidieh Branch for financial support.

References

Akbarzadeh Torbati, N., Rezvani, A. R., Safari, N., Saravani, H. & Amani, V. (2010). Acta Cryst. E66, m1284.
Alizadeh, R., Kalateh, K., Khoshtarkib, Z., Ahmadi, R. & Amani, V. (2009). Acta Cryst. E65, m1439-m1440.
Alizadeh, R., Seifi, S. & Amani, V. (2011). Acta Cryst. E67, m305.
Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2005). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Itoh, S., Kishikawa, N., Suzuki, T. & Takagi, H. D. (2005). Dalton Trans. pp. 1066-1078.
Kou, H. Z., Hishiya, S. & Sato, O. (2008). Inorg. Chim. Acta, 361, 2396-2406.
Onggo, D., Scudder, M. L., Craig, D. C. & Goodwin, H. A. (2005). J. Mol. Struct. 738, 129-136.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Shirvan, S. A. & Haydari Dezfuli, S. (2012). Acta Cryst. E68, m1143.

metal-organic compounds

Dibromido(6,6'-dimethyl-2,2'-bipyridine-2N,N')cobalt(II)