Received 26 November 2011
In the mononuclear title complex, [Ag(C10H6N4)2]PF6, two 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 - interactions [centroid-centroid distances = 3.801 (2) and 3.979 (3) Å] and the hexafluoridophosphate anions are embedded within the interstices. CN interactions [Ncentroid = 3.519 (2) Å] and C-H.N hydrogen-bonding interactions also occur.
For coordination complexes with pyridyl-based ligands, see: Boudalis et al. (2003); Dunne et al. (1997); Huang et al. (2007); Wang et al. (2009). For a related complex with 5-(2-pyridyl)pyrazine-2-carbonitrile, see: Wang et al. (2010).
Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT5734 ).
The author is grateful for financial support from the Science and Technology program, Beijing Municipal Education Commission.
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