Received 17 November 2011
In the title complex, [Mn(C11H8N2O)2(H2O)4](ClO4)2, the Mn2+ ion is located on an inversion center with the slightly distorted N2O4 octahedral coordination sphere comprising N-atom donors from two monodentate trans-related bis(pyridin-3-yl)methanone ligands and four water ligands. The two perchlorate anions are linked to the mononuclear complex molecule through water O-HO hydrogen bonds while inter-complex water O-HN(pyridine) interactions form an infinite chain structure extending along the b axis. The perchlorate anions also function as inter-unit links through water O-HO hydrogen bonds which, together with water O-HO(carbonyl) interactions, give a three-dimensional framework structure.
For background to coordination chemistry based on pyridylmethanone derivatives, see: Huang et al. (2003); Chen et al. (2005); For transition metal complexes of bis(pyridin-3-yl)methanone, see: Zhang (2011); Chen & Mak (2005).
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: ZS2167 ).
The authors are grateful for financial support from the Beijing Municipal Education Commission.
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