Acta Cryst. (2013). E69, m17-m18
[ doi:10.1107/S1600536812049434 ]

Aqua(4-cyanopyridine-N⁴)(5,10,15,20-tetraphenylporphyrinato-⁴N)magnesium

K. Ezzayani, M. S. Belkhiria, S. Najmudin, C. Bonifácio and H. Nasri

Abstract: In the title complex, [Mg(C₄₄H₂₈N₄)(C₆H₄N₂)(H₂O)], the Mg²⁺ cation is octahedrally coordinated and lies on an inversion center with the axially located 4-cyanopyridine and aqua ligands exhibiting 50% substitutional disorder. The cyano-bound 4-cyanopyridine molecule also is disordered across the inversion centre. The four N atoms of the pyrrole rings of the dianionic 5,10,15,20-tetraphenylporphyrin ligand occupy the equatorial sites of the octahedron [Mg-N = 2.0552 (10) and 2.0678 (11) Å] and the axial Mg-(N,O) bond length is 2.3798 (12) Å. The crystal packing is stabilized by weak intermolecular C-H interactions.

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