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Volume 68 
Part 1 
Page m5  
January 2012  

Received 26 November 2011
Accepted 29 November 2011
Online 3 December 2011

Key indicators
Single-crystal X-ray study
T = 293 K
Mean [sigma](C-C) = 0.004 Å
R = 0.032
wR = 0.090
Data-to-parameter ratio = 16.7
Details
Open access

Bis[5-(pyridin-2-yl)pyrazine-2-carbonitrile-[kappa]2N4,N5]silver hexafluoridophosphate

aDepartment of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China
Correspondence e-mail: wanchqing@yahoo.com.cn

In the mononuclear title complex, [Ag(C10H6N4)2]PF6, two [kappa]2N,N'-chelating 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands surround the AgI atom, forming a distorted N4 tetrahedral coordination geometry. The mononuclear units are interconnected through [pi]-[pi] interactions [centroid-centroid distances = 3.801 (2) and 3.979 (3) Å] and the hexafluoridophosphate anions are embedded within the interstices. C[triple bond]N...[pi] interactions [N...centroid = 3.519 (2) Å] and C-H....N hydrogen-bonding interactions also occur.

Related literature

For coordination complexes with pyridyl-based ligands, see: Boudalis et al. (2003[Boudalis, A. K., Dahan, F., Bousseksou, A., Tuchagues, J. P. & Perlepes, J. P. (2003). Dalton Trans. pp. 3411-3418.]); Dunne et al. (1997[Dunne, S. J., Summers, L. A. & von Nagy-Felsobuki, E. I. (1997). Coord. Chem. Rev. 165, 1-92.]); Huang et al. (2007[Huang, Y. G., Gong, Y. Q., Jiang, F. L., Yuan, D. Q., Wu, M. Y., Gao, Q., Wei, W. & Hong, M. C. (2007). Cryst. Growth Des. 7, 1385-1389.]); Wang et al. (2009[Wang, Y., Zhao, X. Q., Shi, W., Cheng, P., Liao, D. Z. & Yan, S. P. (2009). Cryst. Growth Des. 9, 2137-2145.]). For a related complex with 5-(2-pyridyl)pyrazine-2-carbonitrile, see: Wang et al. (2010[Wang, Z.-J., Zhang, F. & Wan, C.-Q. (2010). Acta Cryst. E66, m1232-m1233.]).

[Scheme 1]

Experimental

Crystal data
  • [Ag(C10H6N4)2]PF6

  • Mr = 617.22

  • Triclinic, [P \overline 1]

  • a = 8.8989 (9) Å

  • b = 9.1711 (10) Å

  • c = 14.0804 (15) Å

  • [alpha] = 77.023 (2)°

  • [beta] = 86.926 (2)°

  • [gamma] = 84.809 (2)°

  • V = 1114.5 (2) Å3

  • Z = 2

  • Mo K[alpha] radiation

  • [mu] = 1.05 mm-1

  • T = 293 K

  • 0.38 × 0.30 × 0.30 mm

Data collection
  • Bruker APEXII CCD area-detector diffractometer

  • Absorption correction: multi-scan (SADABS; Bruker, 2007[Bruker (2007). APEX2, SADABS and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]) Tmin = 0.861, Tmax = 1.000

  • 8106 measured reflections

  • 5438 independent reflections

  • 4544 reflections with I > 2[sigma](I)

  • Rint = 0.017

Refinement
  • R[F2 > 2[sigma](F2)] = 0.032

  • wR(F2) = 0.090

  • S = 1.04

  • 5438 reflections

  • 325 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.71 e Å-3

  • [Delta][rho]min = -0.37 e Å-3

Table 1
Hydrogen-bond geometry (Å, °)

D-H...A D-H H...A D...A D-H...A
C11-H11A...N7i 0.93 2.47 3.201 (2) 135
Symmetry code: (i) x+1, y, z.

Data collection: APEX2 (Bruker, 2007[Bruker (2007). APEX2, SADABS and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2007[Bruker (2007). APEX2, SADABS and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; 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: SHELXTL and PLATON (Spek, 2009[Spek, A. L. (2009). Acta Cryst. D65, 148-155.]).


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT5734 ).


Acknowledgements

The author is grateful for financial support from the Science and Technology program, Beijing Municipal Education Commission.

References

Boudalis, A. K., Dahan, F., Bousseksou, A., Tuchagues, J. P. & Perlepes, J. P. (2003). Dalton Trans. pp. 3411-3418.  [CSD] [CrossRef]
Bruker (2007). APEX2, SADABS and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Dunne, S. J., Summers, L. A. & von Nagy-Felsobuki, E. I. (1997). Coord. Chem. Rev. 165, 1-92.  [ChemPort]
Huang, Y. G., Gong, Y. Q., Jiang, F. L., Yuan, D. Q., Wu, M. Y., Gao, Q., Wei, W. & Hong, M. C. (2007). Cryst. Growth Des. 7, 1385-1389.  [CSD] [CrossRef] [ChemPort]
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]
Spek, A. L. (2009). Acta Cryst. D65, 148-155.  [ISI] [CrossRef] [details]
Wang, Z.-J., Zhang, F. & Wan, C.-Q. (2010). Acta Cryst. E66, m1232-m1233.  [CSD] [CrossRef] [details]
Wang, Y., Zhao, X. Q., Shi, W., Cheng, P., Liao, D. Z. & Yan, S. P. (2009). Cryst. Growth Des. 9, 2137-2145.  [CSD] [CrossRef] [ChemPort]


Acta Cryst (2012). E68, m5  [ doi:10.1107/S1600536811051403 ]

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