4,4′-Methylenedianilinium bis(3-carboxy-4-hydroxybenzenesulfonate) monohydrate
نویسندگان
چکیده
منابع مشابه
Hydrogen bonding in proton-transfer compounds of 5-sulfosalicylic acid with bicyclic heteroaromatic Lewis bases.
The crystal structures of quinolinium 3-carboxy-4-hydroxybenzenesulfonate trihydrate, C9H8N + C7H5O6S 3H2O, (I), 8-hydroxyquinolinium 3-carboxy-4-hydroxybenzenesulfonate monohydrate, C9H8NO + C7H5O6S H2O, (II), 8-aminoquinolinium 3-carboxy-4-hydroxybenzenesulfonate dihydrate, C9H9N2 + C7H5O6S 2H2O, (III), and 2-carboxyquinolinium 3-carboxy-4-hydroxybenzenesulfonate quinolinium-2-carboxylate, C1...
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In the anion of the title hydrated mol-ecular salt, C9H8N(+)·C8H4NO6 (-)·H2O, the protonated carboxyl and nitro groups makes dihedral angles of 27.56 (5) and 6.86 (8)°, respectively, with the attached benzene ring, whereas the deprotonated carb-oxy group is almost orthogonal to it with a dihedral angle of 80.21 (1)°. In the crystal, the components are linked by O-H⋯O and N-H⋯O hydrogen bonds, g...
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In the title compound, C(14)H(8)Br(2)O(3)·H(2)O, the organic and water mol-ecules both have crystallographically imposed C(s) symmetry. The dihedral angle between the aromatic rings is 45.76 (11)°. In the crystal structure, inter-molecular C-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into chains parallel to the a axis. No π-π stacking inter-actions are observed in the crystal structure.
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The asymmetric unit of the title compound, C(5)H(7)N(2) (+)·C(6)H(6)NO(3)S(-)·C(6)H(7)NO(3)S·H(2)O, contains one 4-ammonio-benzene-sulfonate zwitterion ((+)H(3)NC(6)H(4)SO(3) (-)), one 4-amino-benzene-sulfonate anion (H(2)NC(6)H(4)SO(3) (-)), one 4-amino-pyridinium cation and two half-mol-ecules of water, each lying on a twofold rotation axis. The various ions and molecules in the structure are...
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The title compound, C(14)H(12)N(2)O(3)·H(2)O, synthesized by the reaction of methyl 4-amino-benzoate with isonicotinoyl chloride hydro-chloride, is relatively planar, with the pyridine ring being inclined by 7.46 (7)° to the benzene ring. In the crystal, the methyl 4-isonicotinamido-benzoate mol-ecules are inter-linked by water mol-ecules via N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds, leading to th...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808029115