catena-Poly[[(1,10-phenanthroline)cobalt(II)]-di-μ-azido]

Gao, X.-M.; Zhao, J.-P.; Liu, F.-C.

doi:10.1107/S1600536812006435

Volume 68
Part 3
Page m318
March 2012

Received 12 January 2012
Accepted 13 February 2012
Online 24 February 2012

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.005 Å
R = 0.052
wR = 0.101
Data-to-parameter ratio = 14.9
Details

catena-Poly[[(1,10-phenanthroline)cobalt(II)]-di--azido]

Xue-Miao Gao,^a Jiong-Peng Zhao ^a and Fu-Chen Liu ^a ^*

^aSchool of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
Correspondence e-mail: fuchenliutj@yahoo.com

In the crystal structure of the binuclear title complex, [Co(N₃)₂(C₁₂H₈N₂)]_n, each Co^II cation is coordinated by two N atoms from one chelating 1,10-phenanthroline ligand and four azide ligands in a slightly distorted octahedral coordination. The two Co^II cations of the binuclear complex are related by an inversion centre and are bridged by two symmetry-related azide ligands in both [mu] _1,1 and [mu] _1,3 modes. The [mu] _1,3 bridging mode gives rise to an infinite one-dimensional chain along the a axis, whereas the [mu] _1,1 bridging mode is responsible for the formation of the binuclear Co^II complex.

Related literature

For general background to metal-azide complexes, see: Zhao et al. (2009). For a closely related Ni-azide structure, see: Li et al. (2000).

Experimental

Crystal data

[Co(N₃)₂(C₁₂H₈N₂)]
M_r = 323.19
Triclinic, $[P \overline 1]$
a = 7.0018 (14) Å
b = 10.049 (2) Å
c = 10.491 (2) Å
= 109.83 (3)°
= 103.63 (3)°
= 105.78 (3)°
V = 622.8 (2) Å³
Z = 2
Mo K radiation
= 1.38 mm^-1
T = 293 K
0.2 × 0.18 × 0.18 mm

Data collection

Rigaku SCXmini diffractometer
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) T_min = 0.720, T_max = 1
6534 measured reflections
2822 independent reflections
2087 reflections with I > 2(I)
R_int = 0.053
Standard reflections: 0

Refinement

R[F² > 2(F²)] = 0.052
wR(F²) = 0.101
S = 1.07
2822 reflections
190 parameters
H-atom parameters constrained
_max = 0.36 e Å^-3
_min = -0.42 e Å^-3

Table 1
Selected bond lengths (Å)

Co1-N1ⁱ	2.113 (3)
Co1-N1	2.175 (3)
Co1-N4	2.202 (3)
Co1-N6ⁱⁱ	2.144 (3)
Co1-N7	2.141 (3)
Co1-N8	2.141 (3)
Symmetry codes: (i) -x+2, -y+2, -z+1; (ii) -x+3, -y+2, -z+1.

Data collection: PROCESS-AUTO (Rigaku, 1998); cell refinement: PROCESS-AUTO; data reduction: PROCESS-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: VN2030 ).

Acknowledgements

The authors acknowledge financial support from Tianjin Municipal Education Commission (grant No. 20100502).

References

Burnett, M. N. & Johnson, C. K. (1996). ORTEPIII. Report ORNL-6895. Oak Ridge National Laboratory, Tennessee, USA.
Higashi, T. (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan.
Li, L.-C., Liao, D.-Z., Jiang, Z.-H. & Yan, S.-P. (2000). Polyhedron, 19 1575-1578.
Rigaku (1998). PROCESS-AUTO. Rigaku Americas Corporation, The Woodlands, Texas, USA.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Zhao, J.-P., Hu, B.-W., Sanudo, E. C., Yang, Q., Zeng, Y.-F. & Bu, X.-H. (2009). Inorg. Chem. 48 2482-2489.

metal-organic compounds