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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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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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