Acta Cryst. (2007). E63, m1827  [ doi:10.1107/S1600536807027055 ]

Tetrakis(1,10-phenanthroline)calcium(II) bis(perchlorate) 4-(dimethylamino)benzaldehyde disolvate

X.-S. Tai, J. Yin and M.-Y. Hao

Abstract: In the title compound, [Ca(C₁₂H₈N₂)₄](ClO₄)₂·2C₉H₁₁NO, the Ca²⁺ cation (site symmetry 2) is coordinated by four bidentate 1,10-phenanthroline (phen) molecules, resulting in a square-antiprismatic CaN₈ polyhedron for the metal ion. Two disordered perchlorate ions (Cl site symmetry 2 in both cases) and a 4-(dimethylamino)benzaldehyde molecule complete the structure. A large number of - stacking interactions involving the phen aromatic rings [centroid separations are in the range 3.667 (6)-3.907 (7) Å] help to stabilize the structure. The O atoms of the perchlorate anions are disordered equally over two sites each.

Online 8 June 2007

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