2-Hydroxy-5-{[(E)-4-methoxybenzylidene]azaniumyl}benzoate
نویسندگان
چکیده
In the title zwitterion, C(15)H(13)NO(4), obtained from the condensation of 5-amino-salicylic acid and 4-meth-oxy-benz-alde-hyde, the 4-hydoxyanilinic group of the 5-amino-salicylic acid moiety and the 4-meth-oxy-benzaldehyde moiety are twisted with respect to one another, making a dihedral angle of 10.37 (7)°. The carboxyl-ate group makes a dihedral angle of 5.7 (2)° with the parent 4-hydoxyanilinic group. An intra-molecular O-H⋯O hydrogen bond forms an S(6) ring motif. In the crystal, inter-molecular C-H⋯O and N-H⋯O hydrogen bonds with R(2) (1)(7) ring motifs link the mol-ecules into infinite chains extending along the c axis. The occurence of slipped π-π stacking between symmetry-related aromatic rings reinforces the packing.
منابع مشابه
2-[(2-Hydroxy-4-methoxybenzylidene)azaniumyl]benzoate monohydrate
In the title compound, C(15)H(13)NO(4)·H(2)O, the Schiff base exists in a zwitterionic form and a bifurcated intra-molecular N-H⋯(O,O) hydrogen bond generates two S(6) rings. The dihedral angle between the two benzene rings is 25.8 (2)°. The crystal structure is stabilized by inter-molecular O-H⋯O hydrogen bonds.
متن کاملCrystal structure of ethyl 4-[(E)-(4-hydroxy-3-methoxybenzylidene)amino]benzoate: a p-hydroxy Schiff base
The title p-hy-droxy Schiff base, C17H17NO4, was synthesized via the condensation reaction of benzocaine with vanillin. The benzyl-idine and benzoate rings are inclined to one another by 24.58 (8)°, and the conformation about the C=N bond is E. In the crystal, mol-ecules are linked by O-H⋯N hydrogen bonds, forming zigzag chains propagating along [010]. Adjacent chains are linked by C-H⋯π and we...
متن کامل2-Hydroxy-5-[(E)-(1H-indol-3-ylmethylidene)azaniumyl]benzoate
The zwitterionic title compound, C(16)H(12)N(2)O(3), was obtained as a result of the condensation of 5-amino-salicylic acid and 1H-indole-3-carbaldehyde. The whole mol-ecule is roughly planar: the 4-hy-droxy-anilinic group and the 1H-indole-3-carbaldehyde moieties are only slightly twisted, making a dihedral angle of 7.77 (11)°, whereas, the carboxyl-ate group makes a dihedral angle of 3.34 (45...
متن کامل(E)-4-Hydroxy-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide
In the title compound, C(15)H(14)N(2)O(4), the dihedral angle between the benzene rings is 40.59 (4)° and an intra-molecular O-H⋯N hydrogen bond generates an S(6) ring. In the crystal, N-H⋯O, O-H⋯O and C-H⋯O inter-actions link the mol-ecules into a three-dimensional network.
متن کامل(E)-4-Hydroxy-N′-(4-hydroxy-3-methoxybenzylidene)benzohydrazide
In the title compound, C(15)H(14)N(2)O(4), the N=C double bond has an E configuration. The two benzene rings make a dihedral angle of 28.59 (6)°. In the crystal, mol-ecules are linked into a three-dimensional network by inter-molecular N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds and stabilized by weak C-H⋯π inter-actions.
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 66 شماره
صفحات -
تاریخ انتشار 2010