Received 9 October 2012
In the title salt, [Zn(C22H24N4O)(CH3CN)][Zn(ClO4)(C22H24N4O)(CH3CN)](ClO4)3, two differently coordinated zinc cations occur. In the first complex, the metal ion is coordinated by the N,N',N'',O-tetradentate acetamide ligand and an acetonitrile N atom, generating an approximate trigonal-bipyramidal coordination geometry, with the O atom in an equatorial site and the acetonitrile N atom in an axial site. In the second complex ion, a perchlorate ion is also bonded to the zinc ion, generating a distorted trans-ZnO2N4 octahedron. Of the uncoordinating perchlorate ions, one lies on a crystallographic twofold axis and one lies close to a twofold axis and has a site occupancy of 0.5. N-HO and N-H(O,O) hydrogen bonds are observed in the crystal. Disordered solvent molecules occupy about 11% of the unit-cell volume; their contribution to the scattering was removed with the SQUEEZE routine of the PLATON program [Spek (2009). Acta Cryst. D65, 148-155.].
For related structures found in the Cambridge Structural Database (Version 5.33 of November 2011; Allen, 2002), see: Xu et al. (2010a,b); Patten et al. (2008); Marlin et al. (2006). For biochemical background, see: Makhov et al. (2008); Xu et al. (2010a).
Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT-Plus (Bruker, 2007); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB6972 ).
The work has been partly supported by Statoil Norge AS.
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