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2-Phenyl-acetic acid-3-{(E)-2-[(E)-pyridin-3-yl-methyl-idene]hydrazin-1-ylidenemeth-yl}pyridine (2/1).

ABSTRACT: The asymmetric unit of the title 1:2 adduct, C(12)H(10)N(4)·2C(8)H(8)O(2), comprises a single mol-ecule of 2-phenyl-acetic acid and half a mol-ecule of 3-pyridine-aldazine; the latter is completed by crystallographic inversion symmetry. In the crystal, mol-ecules are connected into a three-component aggregate via O-H?N hydrogen bonds. As the carboxyl group lies above the plane through the benzene ring to which it is attached [C-C-C-C = 62.24?(17)°] and the 4-pyridine-aldazine mol-ecule is almost planar (r.m.s. deviation of the 16 non-H atoms = 0.027?Å), the overall shape of the aggregate is that of a flattened extended chair. Layers of these aggregates are connected by C-H?O and C-H?? inter-actions and stack parallel to (220).

SUBMITTER: Arman HD

PROVIDER: S-EPMC2983166 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature

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2-Phenyl-acetic acid-3-{(E)-2-[(E)-pyridin-3-yl-methyl-idene]hydrazin-1-ylidenemeth-yl}pyridine (2/1).

Arman Hadi D HD Kaulgud Trupta T Tiekink Edward R T ER

Acta crystallographica. Section E, Structure reports online 20100930 Pt 10

The asymmetric unit of the title 1:2 adduct, C(12)H(10)N(4)·2C(8)H(8)O(2), comprises a single mol-ecule of 2-phenyl-acetic acid and half a mol-ecule of 3-pyridine-aldazine; the latter is completed by crystallographic inversion symmetry. In the crystal, mol-ecules are connected into a three-component aggregate via O-H⋯N hydrogen bonds. As the carboxyl group lies above the plane through the benzene ring to which it is attached [C-C-C-C = 62.24 (17)°] and the 4-pyridine-aldazine mol-ecule is almost ...[more]

PMID: 21587652

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Benzoic acid-4-{(1E)-[(E)-2-(pyridin-4-yl-methyl-idene)hydrazin-1-yl-idene]meth-yl}pyridine (2/1).

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Benzoic acid-2-{(E)-[(E)-2-(2-pyridyl-methyl-idene)hydrazin-1-yl-idene]meth-yl}pyridine (2/1).

Project description:The asymmetric unit of the title cocrystal, C(12)H(10)N(4)·2C(7)H(6)O(2), comprises a single mol-ecule of benzoic acid and one half-mol-ecule of 2-pyridine-aldazine situated about a centre of inversion. The carboxyl group is coplanar with the benzene ring to which it is connected [O-C-C-C = -172.47?(12)°] and similarly, the 2-pyridine-aldazine mol-ecule is planar (r.m.s. deviation of the 16 non-H atoms = 0.017?Å). In the crystal, mol-ecules are connected into a non-planar three-mol-ecule aggregate [dihedral angle between the benzene and pyridyl ring connected by the hydrogen bond = 61.30?(7)°] with a twisted Z-shape. Layers of 2-pyridine-aldazine mol-ecules in the ab plane are sandwiched by benzoic acid mol-ecules being connected by O-H?N and C-H?O inter-actions, the latter involving the carbonyl O atom so that each benzoic acid mol-ecule links three different 2-pyridine-aldazine mol-ecules. Inter-digitated layers stack along the c axis.

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(2E)-2-(2-Phenyl-hydrazin-1-yl-idene)propanoic acid.

Project description:The 13 non-H atoms comprising the title compound, C(9)H(10)N(2)O(2), are close to planar (r.m.s. deviation = 0.140?Å), with maximum deviations of 0.292?(1) and 0.210?(1)?Å to either side of the least-squares plane exhibited by the hy-droxy and carbonyl O atoms, respectively. The observed conformation is stabilized by an intra-molecular O-H?N hydrogen bond. The conformation about the N=C double bond [1.2909?(16)?Å] is E. The hy-droxy OH group also forms an inter-molecular hydrogen bond to a carbonyl O atom, and the amine H atom similarly forms an N-H?O hydrogen bond to a second carbonyl O atom. The result is the formation of a double layer with a flat topology. Layers stack along the a-axis direction connected by C-H?? inter-actions.

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(E)-2-{4-[(Pyridin-2-yl)methyl-idene-amino]-phen-yl}acetic acid.

Project description:The title mol-ecule, C(14)H(12)N(2)O(2), forms a dimeric unit linked by a pair of symmetry-equivalent O-H?N hydrogen bonds. The aromatic rings are significantly twisted from each other with a dihedral angle of 44.04?(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 ?-? stacking inter-action is also observed [centroid-centroid distance = 3.7330?(7)?Å].

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Crystal structure of (pyridin-2-yl-methyl-idene)(tri-phenyl-meth-yl)amine.

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