Received 14 October 2010
In the title compound, [Mn(C6H4N5O)2(H2O)2]·2H2O, the MnII ion is situated on an inversion centre and is coordinated by the O and N atoms of two bis-chelating 5-(2-pyridyl-1-oxide)tetrazolate ligands and two O atoms of two water molecules in a distorted octahedral geometry. All the water H atoms are involved in O-HN and O-HO hydrogen bonds with uncoordinated water O atoms and tetrazole N atoms, which link the molecules into a three-dimensional network.
For backgroud to tetrazolate derivatives in coordination chemistry, see: Jiang et al. (2007); Song et al. (2009); Zhang (2009). For related structures, see: Facchetti et al. (2004); Lin et al. (2005); Vrbova et al. (2000)
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); 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.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LX2180 ).
This work was supported by the Natural Science Foundation of Xuzhou Normal University (grant No. 09XLA06) and the National Natural Science Foundation of China (grant No. 21071121).
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