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Abstract
In the title complex, [Mn(C8H9N2O4)2(H2O)2]·3.5H2O, the MnII cation is six-coordinated by two N,O-bidentate H2pimda− ligands (H2pimda− = 5-carboxy-2-propyl-1H-imidazole-4-carboxylate) and two water molecules in a distorted octahedral environment. The complete solid-state structure can be described as a three-dimensional supramolecular framework stabilized by a wide range of O—H⋯O and N—H⋯O hydrogen bonds. The propyl groups of H2pimda− are disordered over two sets of sites with refined occupancies of 0.759 (5):0.241 (5) and 0.545 (7):0.455 (7).
Highlights
In the title complex, [Mn(C8H9N2O4)2(H2O)2]Á3.5H2O, the MnII cation is six-coordinated by two N,O-bidentate H2pimdaÀ ligands (H2pimdaÀ = 5-carboxy-2-propyl-1Himidazole-4-carboxylate) and two water molecules in a distorted octahedral environment
The complete solid-state structure can be described as a three-dimensional supramolecular framework stabilized by a wide range of O—HÁ Á ÁO and N—HÁ Á ÁO hydrogen bonds
The propyl groups of H2pimdaÀ are disordered over two sets of sites with refined occupancies of 0.759 (5):0.241 (5) and 0.545 (7):0.455 (7)
Summary
Key indicators: single-crystal X-ray study; T = 296 K; mean (C–C) = 0.006 A; disorder in main residue; R factor = 0.059; wR factor = 0.152; data-to-parameter ratio = 13.2. The propyl groups of H2pimdaÀ are disordered over two sets of sites with refined occupancies of 0.759 (5):0.241 (5) and 0.545 (7):0.455 (7). Related literature For our previous structural studies of complexes with H2pimdaÀ, see: Yan et al (2010); Li et al (2010); Song et al(2010); He et al (2010); Fan et al (2010). Crystal data [Mn(C8H9N2O4)2(H2O)2]Á3.5H2O Mr = 548.37 Triclinic, P1 a = 10.609 (6) Ab = 10.649 (6) Ac = 11.424 (7) A = 82.748 (8) = 82.544 (7)
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