2,2′-(4,6-Dinitro-1,3-phenylenedioxy)diacetic acid dihydrate
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چکیده
In the title compound, C(10)H(8)N(2)O(10)·2H(2)O, the skeleton of the dicarboxylic acid mol-ecule is approximately planar, the largest deviation being 0.477 (1) Å for an O atom of a nitro group; this nitro group is twisted out of the plane of the ring by 24.6 (1)°. Adjacent mol-ecules are linked by O-H⋯O hydrogen bonds, which connect the dicarboxylic acid and water mol-ecules into a three-dimensional supra-molecular network.
منابع مشابه
2,2′-[(4,6-Dinitro-1,3-phenylene)dioxy]diacetic acid hemihydrate
The skeletons of both independent mol-ecules of the carboxylic acid hemihydrate, C(10)H(8)N(2)O(10)·0.5H(2)O, are approximately planar [maximum deviations 0.642 (3) and 0.468 (1) Å]. The deviations arise from the twisting of the nitro groups with respect to the aromatic rings [dihedral angles = 3.24 (2) and 27.01 (1), and 7.87 (1) and 16.37 (2)° in the two molecules]. The crystal structure feat...
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The title dysprosium coordination polymer, {[Dy(2)(C(10)H(8)O(6))(3)(H(2)O)(2)]·2H(2)O}(n), was synthesized by reacting dysprosium(III) nitrate and the flexible ligand (p-phenyl-enedi-oxy)diacetic acid under hydro-thermal conditions. Each Dy(III) ion is coordinated by nine O atoms in a tricapped trigonal prismatic geometry. The DyO(9) polyhedra form layers parallel to the bc plane. The rigid be...
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2-Amino-1,3-dimethylimidazolium 2,2-dimethyl-4,6-dioxo-1,3-dioxanide (6) has been obtained from the reaction of 2,2-dimethyl-4,6-dioxo-1,3dioxan (1, “Meldrum’s acid”) and 2-imino-1,3-dimethylimidazoline (5) in excellent yield. The unit cell of 6 contains two crystallographically independent anions lying on crystallographic mirror planes. The structure of the anion is compared with that of compo...
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In the title compound, [Na(C(10)H(9)O(6))(C(10)H(10)O(6))]·0.5C(10)H(8)N(2)·H(2)O, the Na atom is eight-coordinated in an distorted dicapped-octa-hedral geometry by eight O atoms from a 2-(2-carb-oxy-meth-oxy-phen-oxy)acetate (o-BDOAH) anion and a 2,2'-(o-phenyl-enedi-oxy)diacetic acid (o-BDOAH(2)) mol-ecule. The uncoordinated 4,4'-bipyridine mol-ecule is arranged around an inversion center and...
متن کامل5-(4-Fluorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
The title compound, C(13)H(11)FO(4), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 4-fluoro-benz-alde-hyde in ethanol. The 1,3-dioxane ring adopts an envelope conformation. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.
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