Abstract
The title compound, [Zn(C2H8NO6P2)2(H2O)4]·4H2O, was synthesized by the reaction of ZnCl2 with 1-aminoethane-1,1-diyldiphosphonic acid in aqueous solution. The asymmetric unit contains one-half of the complex and two water molecules of solvation. The Zn atom occupies a special position on an inversion centre. This results in a slightly distorted octahedral coordination environment, which consists of the O atoms from two phosphonic acids and four water molecules. The crystal structure displays N—H⋯O and O—H⋯O hydrogen bonding, which creates a three-dimensional network.
Highlights
The title compound, [Zn(C2H8NO6P2)2(H2O)4]4H2O, was synthesized by the reaction of ZnCl2 with 1-aminoethane-1,1diyldiphosphonic acid in aqueous solution
H atoms treated by a mixture of independent and constrained refinement max = 0.39 e Å3
The Zn atom occupies a special position on an inversion centre
Summary
R factor = 0.037; wR factor = 0.081; data-to-parameter ratio = 12.3. H atoms treated by a mixture of independent and constrained refinement max = 0.39 e Å3. The title compound, [Zn(C2H8NO6P2)2(H2O)4]4H2O, was synthesized by the reaction of ZnCl2 with 1-aminoethane-1,1diyldiphosphonic acid in aqueous solution. The asymmetric unit contains one-half of the complex and two water molecules of solvation. The Zn atom occupies a special position on an inversion centre. This results in a slightly distorted octahedral coordination environment, which consists of the O atoms from two phosphonic acids and four water molecules. The crystal structure displays N—H O and O—H O hydrogen bonding, which creates a three-dimensional network.
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