Acta Cryst. (2006). E62, m90-m91  [ doi:10.1107/S160053680504064X ]

Dihydronium bis(2,6-diaminopyridinium) tris(pyridine-2,6-dicarboxylato-³O,O',N)dysprosate(III) dihydrate

M. Rafizadeh and V. Amani

Abstract: The reaction of dysprosium(III) chloride with [H₂pyda]²⁺[pydc]^2- (pyda is 2,6-diaminopyridine and H₂pydc is 2,6-pyridinedicarboxylic acid) in an aqueous solution leads to the formation of the title Dy^III complex, (H₅O₂)(C₅H₈N₃)₂[Dy(C₇H₃NO₄)₃]·2H₂O. The Dy ion lies on a twofold rotation axis and is nine-coordinated with a distorted tricapped trigonal-prismatic geometry. The dihydronium cation (H₅O₂)⁺ is located on a twofold axis, the longer O-H bond distance being 1.225 Å.

Online 14 December 2005

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