2,2′,2′′,2′′′-(1,4-Phenylenedinitrilo)tetraacetic acid dihydrate
نویسندگان
چکیده
In the title compound, C(14)H(16)N(2)O(8)·2H(2)O, the complete organic molecule is generated by crystallographic inversion symmetry. The dihedral angles between the aniline ring and the acetic acid groups are almost identical, viz. 82.61 (7) and 80.33 (7)°. In the crystal, O-H⋯O hydrogen bonds link the organic mol-ecules and water mol-ecules, forming zigzag chains the c axis. An intra-molecular O-H⋯O hydrogen bond is also observed.
منابع مشابه
[μ-2,2′-(1,4-Phenylene)diacetato-κ2 O 1:O 4]bis[aqua(2,2′-bipyridine-κ2 N,N′)chloridocopper(II)] dihydrate
In the centrosymmetric title compound, [Cu(2)(C(10)H(8)O(4))Cl(2)(C(10)H(8)N(2))(2)(H(2)O)(2)]·2H(2)O, the Cu(II) atom is five-coordinated in a distorted square-pyramidal geometry by two N atoms from a chelating 2,2'-bipyridine ligand, one O atom from a 1,4-phenyl-enediacetate ligand, one Cl atom and one water mol-ecule. The 1,4-phenyl-enediacetate ligand, lying on an inversion center, bridges ...
متن کامل1,1′-(p-Phenylenedimethylidene)diimidazol-3-ium bis{2-[(2-carboxyphenyl)disulfanyl]benzoate} dihydrate
The title salt, C(14)H(16)N(4) (2+)·2C(14)H(9)O(4)S(2) (-)·2H(2)O, was obtained by the co-crystalization of 2,2'-dithio-dibenzoic acid with 1,4-bis-(imidazol-1-ylmeth-yl)benzene. It consists of 2-[(2-carb-oxy-phen-yl)disulfan-yl]benzoate anions, centrosymmetric 1,1'-(p-phenyl-enedimethyl-idene)diimidazol-3-ium cations and water mol-ecules. O-H⋯O, O-H⋯S and N-H⋯O hydrogen-bonding inter-actions a...
متن کاملCrystal structures of two 1:2 dihydrate compounds of chloranilic acid with 2-carboxypyridine and 2-carboxyquinoline
The crystal structure of the 1:2 dihydrate compound of chloranilic acid (systematic name: 2,5-di-chloro-3,6-dihy-droxy-1,4-benzo-quinone) with 2-carb-oxy-pyridine (another common name: picolinic acid; systematic name: pyridine-2-carb-oxy-lic acid), namely, 2C6H5.5NO20.5+·C6HCl2O4-·2H2O, (I), has been determined at 180 K, and the structure of the 1:2 dihydrate compound of chloranilic acid with 2...
متن کامل1,4-Dimethylpiperazine-1,4-diium dibromide dihydrate
In the title hydrated mol-ecular salt, C(6)H(16)N(2) (2+)·2Br(-)·2H(2)O, the complete 1,4-dimethyl-piperazine-1,4-diium dication is generated by crystallographic inversion symmetry and both exocyclic C-N bonds are in equatorial orientations. In the crystal, the components are linked by N-H⋯O and O-H⋯Br hydrogen bonds, generating chains propagating in [110].
متن کاملAntipruritic effects of 1,4-naphthoquinones and related compounds.
The antipruritic effects of orally administered 1,4-naphthoquinone derivatives and related compounds on compound 48/80-induced scratching behavior in mice were studied. 2-Hydroxy-3-(2-hydroxyethyl)-1,4-naphthoquinone, ferulic acid, 2,2'-methylenebis(3-hydroxy-1,4-naphthoquinone), and 2,2'-ethylidenebis(3-hydroxy-1,4-naphthoquinone) (impatienol) all exhibited significant antipruritic activity. H...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 68 شماره
صفحات -
تاریخ انتشار 2012