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Volume 69 
Part 11 
Page m608  
November 2013  

Received 7 October 2013
Accepted 14 October 2013
Online 19 October 2013

Key indicators
Single-crystal X-ray study
T = 296 K
Mean [sigma](C-C) = 0.013 Å
R = 0.034
wR = 0.078
Data-to-parameter ratio = 22.1
Details
Open access

catena-Poly[2-methyl­pyridinium [tungstate-di-[mu]-selenido-silver-di-[mu]-selenido] 2-methyl­pyridine monosolvate]

aDepartment of Applied Chemistry, School of Petrochemical Engineering, Changzhou University, Jiangsu 213164, People's Republic of China, and bInstitute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma'anshan, Anhui 243002, People's Republic of China
Correspondence e-mail: zhangqf@ahut.edu.cn

The title compound, {(C6H8N)[AgWSe4]·C6H7N}n, consists of anionic [WAgSe4]n chains, 2-methyl­pyridinium cations and neutral 2-methyl­pyridine mol­ecules. The Se atoms bridge the Ag and W atoms, forming a polymeric chain extending along the b-axis direction. Both the Ag and W atoms are located on a twofold rotation axis and each metal atom is coordinated by four Se atoms in distorted tetra­hedral geometry. In the crystal, the 2-methyl­pyridinium cation and 2-methyl­pyridine mol­ecule are linked via N-H...N hydrogen bonding. Weak C-H...Se inter­actions link the organic components and polymeric anions into a three-dimensional architecture.

Related literature

For applications of compounds with [M,M'Se4] anions (M,M' = transition metals), see: Zhang et al. (2002[Zhang, Q.-F., Leung, W.-H. & Xin, X.-Q. (2002). Coord. Chem. Rev. 224, 35-49.], 2006[Zhang, Q.-F., Ding, J., Yu, Z., Song, Y., Rothenberger, A., Fenske, D. & Leung, W.-H. (2006). Inorg. Chem. 45, 8638-8647.]). For related structures, see: Huang et al. (1997[Huang, Q., Wu, X.-T. & Lu, J.-X. (1997). Chem. Commun. pp. 703-704.]); Lang et al. (1993[Lang, J.-P., Li, J.-G., Bao, S.-A. & Xin, X.-Q. (1993). Polyhedron, 12, 801-806.]); Müller et al. (1983[Müller, A., Jaegermann, W. & Hellmann, W. (1983). J. Mol. Struct. 100, 559-570.]); Yu et al. (1998[Yu, H., Zhang, W.-J., Wu, X.-T., Sheng, T.-L., Wang, Q.-M. & Lin, P. (1998). Angew. Chem. Int. Ed. 37, 2520-2522.]); Dai et al. (2007[Dai, J.-X., Zhang, Q.-F., Song, Y., Wong, W.-Y., Rothenberger, A. & Leung, W.-H. (2007). Polyhedron, 26, 3182-3188.]); Zhang et al. (2000[Zhang, Q.-F., Leung, W.-H., Xin, X.-Q. & Fun, H.-F. (2000). Inorg. Chem. 39, 417-426.]).

[Scheme 1]

Experimental

Crystal data
  • (C6H8N)[AgWSe4]·C6H7N

  • Mr = 794.82

  • Monoclinic, P 2/c

  • a = 7.859 (2) Å

  • b = 5.9448 (15) Å

  • c = 19.830 (5) Å

  • [beta] = 100.962 (3)°

  • V = 909.5 (4) Å3

  • Z = 2

  • Mo K[alpha] radiation

  • [mu] = 15.39 mm-1

  • T = 296 K

  • 0.15 × 0.12 × 0.03 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 = 0.206, Tmax = 0.655

  • 5398 measured reflections

  • 2051 independent reflections

  • 1565 reflections with I > 2[sigma](I)

  • Rint = 0.041

Refinement
  • R[F2 > 2[sigma](F2)] = 0.034

  • wR(F2) = 0.078

  • S = 0.97

  • 2051 reflections

  • 93 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.86 e Å-3

  • [Delta][rho]min = -1.06 e Å-3

Table 1
Selected bond lengths (Å)

W1-Se1 2.3347 (9)
W1-Se2 2.3379 (9)
Ag1-Se1i 2.6224 (11)
Ag1-Se2 2.6210 (10)
Symmetry code: (i) x, y+1, z.

Table 2
Hydrogen-bond geometry (Å, °)

D-H...A D-H H...A D...A D-H...A
N1-H1N...N1ii 0.86 1.93 2.786 (12) 172
C1-H1...Se1 0.93 2.96 3.732 (8) 141
C4-H4...Se1iii 0.93 2.90 3.832 (8) 176
Symmetry codes: (ii) -x, -y+1, -z+1; (iii) [x, -y, 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: XU5746 ).


Acknowledgements

This work was supported by the Natural Science Foundation of China (20871002) and the Program for New Century Excellent Talents in Universities of China (NCET-08-0618). QFZ is grateful to the State Key Laboratory of Coordination Chemistry at Nanjing University for assistance with the data collection.

References

Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Dai, J.-X., Zhang, Q.-F., Song, Y., Wong, W.-Y., Rothenberger, A. & Leung, W.-H. (2007). Polyhedron, 26, 3182-3188.  [Web of Science] [CSD] [CrossRef] [ChemPort]
Huang, Q., Wu, X.-T. & Lu, J.-X. (1997). Chem. Commun. pp. 703-704.  [CSD] [CrossRef]
Lang, J.-P., Li, J.-G., Bao, S.-A. & Xin, X.-Q. (1993). Polyhedron, 12, 801-806.  [ChemPort]
Müller, A., Jaegermann, W. & Hellmann, W. (1983). J. Mol. Struct. 100, 559-570.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [ChemPort] [IUCr Journals]
Yu, H., Zhang, W.-J., Wu, X.-T., Sheng, T.-L., Wang, Q.-M. & Lin, P. (1998). Angew. Chem. Int. Ed. 37, 2520-2522.  [CrossRef] [ChemPort]
Zhang, Q.-F., Ding, J., Yu, Z., Song, Y., Rothenberger, A., Fenske, D. & Leung, W.-H. (2006). Inorg. Chem. 45, 8638-8647.  [Web of Science] [CSD] [CrossRef] [PubMed] [ChemPort]
Zhang, Q.-F., Leung, W.-H. & Xin, X.-Q. (2002). Coord. Chem. Rev. 224, 35-49.  [Web of Science] [CrossRef] [ChemPort]
Zhang, Q.-F., Leung, W.-H., Xin, X.-Q. & Fun, H.-F. (2000). Inorg. Chem. 39, 417-426.  [Web of Science] [CSD] [CrossRef] [PubMed] [ChemPort]


Acta Cryst (2013). E69, m608  [ doi:10.1107/S1600536813028213 ]

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