二水合双（4-羟基吡啶-2,6-二羧酸根-κO,N,O）铁（III）2,6-二氨基吡啶鎓盐
2,6-Diamino-pyridinium bis-(4-hydroxy-pyridine-2,6-dicarboxyl-ato-κO,N,O)ferrate(III) dihydrate.
作者信息
Rafizadeh Masoud, Derikvand Zohreh, Nemati Andya
机构信息
Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2008 Sep 20;64(Pt 10):m1300-1. doi: 10.1107/S1600536808029280.
The reaction of iron(II) sulfate hepta-hydrate with the proton-transfer compound (pydaH)(hypydcH) (pyda = pyridine-2,6-diamine; hypydcH(2) = 4-hydroxy-pyridine-2,6-dicarboxylic acid) in an aqueous solution led to the formation of the title compound, (C(5)H(8)N(3))[Fe(C(7)H(3)NO(5))(2)]·2H(2)O. The anion is a six-coordinated complex with a distorted octa-hedral geometry around the Fe(III) atom. Extensive inter-molecular O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, involving the complex anion, (pydaH)(+) counter-ion and two uncoordinated water mol-ecules, and π-π [centroid-to-centroid distance 3.323 (11) Å] and C-O⋯π [O-centroid distance 3.150 (15) Å] inter-actions connect the various components into a supra-molecular structure.
七水合硫酸亚铁与质子转移化合物（pydaH）（hypydcH）（pyda = 吡啶 - 2,6 - 二胺；hypydcH₂ = 4 - 羟基 - 吡啶 - 2,6 - 二羧酸）在水溶液中反应生成了标题化合物（C₅H₈N₃）[Fe（C₇H₃NO₅）₂]·2H₂O。阴离子是一种六配位配合物，Fe（III）原子周围具有扭曲的八面体几何构型。广泛的分子间O - H⋯O、N - H⋯O和C - H⋯O氢键，涉及配合物阴离子、（pydaH）⁺抗衡离子和两个未配位的水分子，以及π - π [质心到质心距离3.323 （11） Å]和C - O⋯π [O - 质心距离3.150 （15） Å]相互作用将各种组分连接成一个超分子结构。
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