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Volume 68 
Part 12 
Pages m1493-m1494  
December 2012  

Received 11 November 2012
Accepted 12 November 2012
Online 17 November 2012

Key indicators
Single-crystal X-ray study
T = 298 K
Mean [sigma](C-C) = 0.019 Å
R = 0.079
wR = 0.155
Data-to-parameter ratio = 16.8
Details
Open access

catena-Poly[[(4,4'-dimethyl-2,2'-bipyridine-[kappa]2N,N')cadmium]-di-[mu]-bromido]

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

In the crystal of the title polymeric compound, [CdBr2(C12H12N2)]n, the CdII cation is located on a twofold rotation axis and is six-coordinated in a distorted octahedral geometry formed by two N atoms from the 4,4'-dimethyl-2,2'-bipyridine ligand and by four bridging Br- anions. The bridging function of the Br- anions leads to a polymeric chain running along the c axis. Weak C-H...[pi] interactions observed between adjacent chains are effective in the stabilization of the three-dimensional packing.

Related literature

For related structures, see: Ahmadi et al. (2008[Ahmadi, R., Kalateh, K., Abedi, A., Amani, V. & Khavasi, H. R. (2008). Acta Cryst. E64, m1306-m1307.]); Alizadeh et al. (2010[Alizadeh, R., Mohammadi Eshlaghi, P. & Amani, V. (2010). Acta Cryst. E66, m996.]); Amani et al. (2009[Amani, V., Safari, N., Notash, B. & Khavasi, H. R. (2009). J. Coord. Chem. 62, 1939-1950.]); Bellusci et al. (2008[Bellusci, A., Crispini, A., Pucci, D., Szerb, E. I. & Ghedini, M. (2008). Cryst. Growth Des. 8, 3114-3122.]); Han et al. (2006[Han, J., Fang, J., Dong, Y. & Chang, H. (2006). Acta Cryst. E62, m183-m184.]); Hojjat Kashani et al. (2008[Hojjat Kashani, L., Amani, V., Yousefi, M. & Khavasi, H. R. (2008). Acta Cryst. E64, m905-m906.]); Kalateh et al. (2008[Kalateh, K., Ebadi, A., Ahmadi, R., Amani, V. & Khavasi, H. R. (2008). Acta Cryst. E64, m1397-m1398.], 2010[Kalateh, K., Ahmadi, R. & Amani, V. (2010). Acta Cryst. E66, m512.]); Shirvan & Haydari Dezfuli (2012[Shirvan, S. A. & Haydari Dezfuli, S. (2012). Acta Cryst. E68, m1006-m1007.]); Sofetis et al. (2006[Sofetis, A., Raptopoulou, C. P., Terzis, A. & Zafiropoulos, T. F. (2006). Inorg. Chim. Acta, 359, 3389-3395.]); Willett et al. (2001[Willett, R. D., Pon, G. & Nagy, C. (2001). Inorg. Chem. 40, 4342-4352.]); Yousefi et al. (2008[Yousefi, M., Tadayon Pour, N., Amani, V. & Khavasi, H. R. (2008). Acta Cryst. E64, m1259.]); Zhang (2007[Zhang, B.-S. (2007). Acta Cryst. E63, m1562.]).

[Scheme 1]

Experimental

Crystal data
  • [CdBr2(C12H12N2)]

  • Mr = 456.45

  • Monoclinic, C 2/c

  • a = 17.979 (4) Å

  • b = 10.5319 (18) Å

  • c = 7.4496 (16) Å

  • [beta] = 108.403 (17)°

  • V = 1338.5 (5) Å3

  • Z = 4

  • Mo K[alpha] radiation

  • [mu] = 7.58 mm-1

  • T = 298 K

  • 0.25 × 0.21 × 0.20 mm

Data collection
  • Bruker APEXII CCD area-detector diffractometer

  • Absorption correction: multi-scan (SADABS; Bruker, 2001[Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]) Tmin = 0.188, Tmax = 0.246

  • 3392 measured reflections

  • 1313 independent reflections

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

  • Rint = 0.095

Refinement
  • R[F2 > 2[sigma](F2)] = 0.079

  • wR(F2) = 0.155

  • S = 1.24

  • 1313 reflections

  • 78 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 1.20 e Å-3

  • [Delta][rho]min = -0.88 e Å-3

Table 1
Selected bond lengths (Å)

Cd1-N1 2.357 (10)
Cd1-Br1 2.6852 (17)
Cd1-Br1i 2.8789 (16)
Symmetry code: (i) [x, -y+2, z-{\script{1\over 2}}].

Table 2
Hydrogen-bond geometry (Å, °)

Cg is the centroid of the N1-pyridine ring.

D-H...A D-H H...A D...A D-H...A
C4-H4B...Cgii 0.96 2.84 3.575 (16) 135
Symmetry code: (ii) [x, -y+1, z-{\script{1\over 2}}].

Data collection: APEX2 (Bruker, 2007[Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2007[Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); 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: XU5649 ).


Acknowledgements

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

References

Ahmadi, R., Kalateh, K., Abedi, A., Amani, V. & Khavasi, H. R. (2008). Acta Cryst. E64, m1306-m1307.  [CSD] [CrossRef] [details]
Alizadeh, R., Mohammadi Eshlaghi, P. & Amani, V. (2010). Acta Cryst. E66, m996.  [CSD] [CrossRef] [details]
Amani, V., Safari, N., Notash, B. & Khavasi, H. R. (2009). J. Coord. Chem. 62, 1939-1950.  [ISI] [CSD] [CrossRef] [ChemPort]
Bellusci, A., Crispini, A., Pucci, D., Szerb, E. I. & Ghedini, M. (2008). Cryst. Growth Des. 8, 3114-3122.  [CSD] [CrossRef] [ChemPort]
Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Han, J., Fang, J., Dong, Y. & Chang, H. (2006). Acta Cryst. E62, m183-m184.  [CSD] [CrossRef] [details]
Hojjat Kashani, L., Amani, V., Yousefi, M. & Khavasi, H. R. (2008). Acta Cryst. E64, m905-m906.  [CSD] [CrossRef] [details]
Kalateh, K., Ahmadi, R. & Amani, V. (2010). Acta Cryst. E66, m512.  [CSD] [CrossRef] [details]
Kalateh, K., Ebadi, A., Ahmadi, R., Amani, V. & Khavasi, H. R. (2008). Acta Cryst. E64, m1397-m1398.  [CSD] [CrossRef] [details]
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]
Shirvan, S. A. & Haydari Dezfuli, S. (2012). Acta Cryst. E68, m1006-m1007.  [CSD] [CrossRef] [details]
Sofetis, A., Raptopoulou, C. P., Terzis, A. & Zafiropoulos, T. F. (2006). Inorg. Chim. Acta, 359, 3389-3395.  [ISI] [CSD] [CrossRef] [ChemPort]
Willett, R. D., Pon, G. & Nagy, C. (2001). Inorg. Chem. 40, 4342-4352.  [ISI] [CSD] [CrossRef] [PubMed] [ChemPort]
Yousefi, M., Tadayon Pour, N., Amani, V. & Khavasi, H. R. (2008). Acta Cryst. E64, m1259.  [CSD] [CrossRef] [details]
Zhang, B.-S. (2007). Acta Cryst. E63, m1562.  [CSD] [CrossRef] [details]


Acta Cryst (2012). E68, m1493-m1494   [ doi:10.1107/S1600536812046636 ]

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