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2-(2-{[2-(4-Pyridylcarbon-yl)hydrazinyl-idene]meth-yl}phen-oxy)acetic acid.

ABSTRACT: In the title compound, C(15)H(13)N(3)O(4), the pyridine and benzene rings are nearly perpendicular [dihedral angle = 84.24?(5)°]. In the crystal structure, classical O-H?N hydrogen bonding between the OH group of the carboxyl unit and a neighbouring pyridine ring N atom and N-H?O hydrogen bonding between the imine NH group and a neighbouring O atom of an acyl unit, together with complementary non-classical C-H?O hydrogen bonds between carboxyl O atoms and neighbouring CH groups, link the mol-ecules into a three-dimensional system.

SUBMITTER: Xia JH

PROVIDER: S-EPMC2979532 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature

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2-(2-{[2-(4-Pyridylcarbon-yl)hydrazinyl-idene]meth-yl}phen-oxy)acetic acid.

Xia Jin Hong JH Liu Bao Yu BY Liu Zheng Z

Acta crystallographica. Section E, Structure reports online 20100515 Pt 6

In the title compound, C(15)H(13)N(3)O(4), the pyridine and benzene rings are nearly perpendicular [dihedral angle = 84.24 (5)°]. In the crystal structure, classical O-H⋯N hydrogen bonding between the OH group of the carboxyl unit and a neighbouring pyridine ring N atom and N-H⋯O hydrogen bonding between the imine NH group and a neighbouring O atom of an acyl unit, together with complementary non-classical C-H⋯O hydrogen bonds between carboxyl O atoms and neighbouring CH groups, link the mol-ecu ...[more]

PMID: 21579430

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2-(2-{[2-(2-Pyridylcarbon-yl)hydrazono]meth-yl}phen-oxy)acetic acid.

Project description:In the title compound, C(15)H(13)N(3)O(4), the pyridine and benzene rings are nearly coplanar [dihedral angle = 4.92?(12)°]. The maximum deviation from the best least-squares plane calculated for the main mol-ecular skeleton is 0.1722?(1)?Å for the carbonyl O atom. In the crystal, inter-molecular O-H?O hydrogen bonds connect the mol-ecules into a chain, while ?-? stacking inter-actions between the pyridine and benzene rings [centroid-centroid distance = 3.9162?(8)?Å and offset angle = 27.20°] complete a two-dimensional network.

| S-EPMC2980243 | biostudies-literature

1-(2-Meth-oxy-phen-yl)-2-{[2-(2-meth-oxy-phen-yl)hydrazinyl-idene](nitro)-meth-yl}diazene.

Project description:In the title compound, C(15)H(15)N(5)O(4), a nitro-formazan derivative, the formazan unit is essentially planar with an r.m.s. deviation of 0.0204?(6)?Å and adopts a closed syn,s-cis configuration with an intra-molecular N-H?N hydrogen bond. The formazan plane makes dihedral angles of 4.32?(5) and 24.35?(5)° with the benzene rings. The dihedral angle between the formazan plane and the nitro group is 12.58?(8)°. In the crystal, C-H?O inter-actions connect the mol-ecules into an inversion dimer.

| S-EPMC3295411 | biostudies-literature

Methyl 2-meth-oxy-4-{[2-(4-nitro-phen-yl)hydrazinyl-idene]meth-yl}benzoate.

Project description:The mol-ecule of the title Schiff base compound, C(16)H(15)N(3)O(5), obtained from a condensation reaction of 4-acet-oxy-3-meth-oxy-benzaldehyde and 4-nitro-phenyl-hydrazine, adopts an E geometry with respect to the C=N double bond. The mol-ecule is roughly planar, with the two benzene rings twisted slightly with respect to each other by a dihedral angle of 6.90 (9)°. In the crystal, inter-molecular N-H⋯O hydrogen bonds link centrosymmetrically related pairs of mol-ecules, forming dimers of R(2) (2)(22) graph-set motif. The dimers are further connected through slipped π-π inter-actions between symmetry-related benzene rings [centroid-centroid distance of 3.646 (1) Å, offset angle of 15.4°].

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2-{2-[(E)-(2-Benzoyl-hydrazin-1-yl-idene)meth-yl]phen-oxy}acetic acid.

Project description:In the title compound, C(16)H(14)N(2)O(4), the dihedral angle between the aromatic rings is 12.45 (6)°. The central C(=O)-N-N=C bridge is roughly planar (r.m.s. deviation = 0.0346 Å) and makes dihedral angles of 13.01 (7) and 0.56 (7)° with the attached phenyl and benzene rings, respectively. The acetic acid unit (r.m.s. deviation = 0.0066 Å) is twisted from its attached benzene ring [dihedral angle = 19.48 (6)°]. In the crystal, mol-ecules are linked by O-H⋯(O,N), N-H⋯O and C-H⋯O hydrogen bonds into sheets lying parallel to the bc plane. A weak aromatic π-π stacking inter-action is also observed [centroid-centroid distance = 3.7330 (7) Å].

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2-[4-(Carb-oxy-meth-yl)phen-oxy]acetic acid.

Project description:The title compound, C(10)H(10)O(5), was obtained by the reaction of 4-hy-droxy-phenyl-acetic acid with chloro-acetic acid. In the crystal, the mol-ecules form a three-dimensional network by way of inter-molecular O-H?O hydrogen bonding.

| S-EPMC3050335 | biostudies-literature

Ethyl 2-[2-(2-meth-oxy-phen-yl)hydrazinyl-idene]-3-oxobutano-ate.

Project description:In the title compound, C(13)H(16)N(2)O(4), an intra-molecular N-H?O hydrogen bond generates an S(6) ring. The mol-ecule adopts an E configuration with respect to the central C=N double bond. In the crystal, symmetry-related mol-ecules are connected into chains along [010] via weak C-H?N hydrogen bonds. The crystal structure is further stabilized by weak C-H?? inter-actions.

| S-EPMC3201242 | biostudies-literature

1-Chloro-1-[(4-meth-oxy-phen-yl)hydrazinyl-idene]propan-2-one.

Project description:The non-H atoms of the title compound, C(10)H(11)ClN(2)O(2), lie nearly on a plane (r.m.s. deviation = 0.150?Å), and the C=N double bond has a Z configuration. In the crystal, adjacent mol-ecules are linked by an N-H?O(carbon-yl) hydrogen bond, forming a chain running along [201].

| S-EPMC3212343 | biostudies-literature

2-(3-Bromo-4-meth-oxy-phen-yl)acetic acid.

Project description:The title compound C(9)H(9)BrO(3), was synthesized by the regioselective bromination of 4-meth-oxy-phenyl-acetic acid using bromine in acetic acid in a 84% yield. In the mol-ecular structure, the meth-oxy group is almost coplanar with the phenyl ring within 0.06 Å; the acetic acid substituent is tilted by 78.15 (7)° relative to the ring. The C-C-C angles at the OMe, acetyl and Br substituents are 118.2 (2), 118.4 (2) and 121.5 (2)°, respectively, indicating that the Br atom is electron-withdrawing, whereas the other substituents possess electron-donating properties. In the crystal, the mol-ecules form centrosymmetric strongly O-H⋯O hydrogen-bonded dimers of the type R(2) (2)(8).

| S-EPMC3007027 | biostudies-literature

(E)-4-{[2-(2-Furylcarbon-yl)hydrazinyl-idene]meth-yl}-2-meth-oxy-phenyl acetate.

Project description:The mol-ecule of the title Schiff base compound, C(15)H(14)N(2)O(5), was obtained from a condensation reaction of 4-acet-oxy-3-meth-oxy-benzaldehyde and 2-furyl-carbonyl-hydrazide. In the mol-ecule, the furyl ring makes a dihedral angle of 14.63 (10)° with the benzene ring. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains along the b axis. Futhermore, weak C-H⋯O inter-actions connect the chains, forming corrugated layers parallel to (001). The dihedral angle between the rings is 14.63 (10)°.

| S-EPMC3099912 | biostudies-literature

4-{[2-(2,4-Dinitro-phen-yl)hydrazinyl-idene]meth-yl}phenol ethanol hemisolvate.

Project description:In the title compound, C(13)H(10)N(4)O(5)·0.5C(2)H(5)OH, the two benzene rings form a dihedral angle of 4.29?(9)°. The ethanol solvent mol-ecule was treated as disordered between two orientations related by symmetry (center of inversion), with occupancies fixed at 0.5. The crystal packing, stabilized by inter-molecular O-H?O and N-H?O hydrogen bonds and ?-? inter-actions [indicated by the short distance of 3.7299?(7)?Å between the centroids of benzene rings from neighbouring mol-ecules], exhibits short inter-molecular O?O contacts of 2.8226?(3)?Å.

| S-EPMC3011783 | biostudies-literature

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