Bis[2-(thio­phen-2-yl)quinoxaline-κN4]silver(I) tetra­fluoridoborate

Crundwell, G.

doi:10.1107/S1600536813004510

Volume 69
Part 3
Page m164
March 2013

Received 7 February 2013
Accepted 15 February 2013
Online 23 February 2013

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.005 Å
Disorder in solvent or counterion
R = 0.054
wR = 0.204
Data-to-parameter ratio = 24.7
Details

Bis[2-(thiophen-2-yl)quinoxaline-N⁴]silver(I) tetrafluoridoborate

Guy Crundwell ^a ^*

^aDepartment of Chemistry, Central Connecticut State University, New Britain, CT 06053, USA
Correspondence e-mail: crundwellg@mail.ccsu.edu

In the title compound, [Ag(C₁₂H₈N₂S)₂]BF₄, the two-coordinate Ag^I ion lies on a crystallographic inversion center and is linearly bonded to the N-donor atoms of two separate quinoxaline ligands. The thiophenyl ring of the ligand is nearly coplanar with the quinoxaline ring system [dihedral angle = 9.15 (13)°]. In the crystal, the complex molecules pack in layers parallel to (-102) and form weak [pi] - [pi] ring stacking interactions [minimum ring centroid separation = 3.7054 (17) Å]. The tetrafluoridoroborate anion is equally disordered about an inversion center.

Related literature

For the synthesis of the title compound, see: Bhogala et al. (2003). For the structure of a similar compound, see: Wang (2012).

Experimental

Crystal data

[Ag(C₁₂H₈N₂S)₂]BF₄
M_r = 619.21
Monoclinic, C 2/c
a = 14.1249 (19) Å
b = 13.1972 (16) Å
c = 13.739 (2) Å
= 102.991 (15)°
V = 2495.5 (6) Å³
Z = 4
Mo K radiation
= 1.03 mm^-1
T = 293 K
0.32 × 0.22 × 0.17 mm

Data collection

Oxford Diffraction Xcalibur Sapphire3 CCD diffractometer
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009 $[Oxford Diffraction (2009). CrysAlis CCD, CrysAlis PRO and CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England.]$ ) T_min = 0.657, T_max = 1.000
30081 measured reflections
4624 independent reflections
2670 reflections with I > 2(I)
R_int = 0.045

Refinement

R[F² > 2(F²)] = 0.054
wR(F²) = 0.204
S = 0.93
4624 reflections
187 parameters
55 restraints
H-atom parameters constrained
_max = 0.68 e Å^-3
_min = -0.51 e Å^-3

Data collection: CrysAlis CCD (Oxford Diffraction, 2009 $[Oxford Diffraction (2009). CrysAlis CCD, CrysAlis PRO and CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England.]$ ); cell refinement: CrysAlis RED (Oxford Diffraction, 2009 $[Oxford Diffraction (2009). CrysAlis CCD, CrysAlis PRO and CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England.]$ ); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: 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: ZS2248 ).

Acknowledgements

This research was funded by a CCSU-AAUP research grant.

References

Bhogala, B. R., Thallapally, P. K. & Nangia, A. (2003). Cryst. Growth Des. 4, 215-218.
Oxford Diffraction (2009). CrysAlis CCD, CrysAlis PRO and CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Wang, Z.-J. (2012). Acta Cryst. E68, m4.

metal-organic compounds

Bis[2-(thiophen-2-yl)quinoxaline-N4]silver(I) tetrafluoridoborate