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2,2'-[Pyridine-2,6-diylbis(carbonyl-hydrazono)]dipropanoic acid N,N-dimethyl-formamide disolvate.

ABSTRACT: The complete molecule of the title compound, C(13)H(13)N(5)O(6)·2C(3)H(7)NO, is generated by crystallographic twofold rotation with an N and a C atom lying on the axis. The structure is stabilized by inter-molecular O-H?O hydrogen bonds.

SUBMITTER: Qiao Y

PROVIDER: S-EPMC2971078 | biostudies-literature | 2009 Oct

REPOSITORIES: biostudies-literature

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2,2'-[Pyridine-2,6-diylbis(carbonyl-hydrazono)]dipropanoic acid N,N-dimethyl-formamide disolvate.

Qiao Yanling Y Cui Jichun J Ding Longhua L Yin Handong H

Acta crystallographica. Section E, Structure reports online 20091007 Pt 11

The complete molecule of the title compound, C(13)H(13)N(5)O(6)·2C(3)H(7)NO, is generated by crystallographic twofold rotation with an N and a C atom lying on the axis. The structure is stabilized by inter-molecular O-H⋯O hydrogen bonds. ...[more]

PMID: 21578266

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(-)-Dimethyl 3,3'-diphenyl-2,2'-[pyridine-2,6-diylbis(carbonyl-imino)]dipropanoate.

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2,2',2'',2'''-[Pyridine-2,6-diylbis(methyl-ene-nitrilo)]tetra-ethanol.

Project description:In the crystal structure of the title compound C(15)H(27)N(3)O(4), the mol-ecule is located on a twofold axis and the asymmetric unit contains one half-mol-ecule, with one N and one C atom lying on the rotation axis. The pyridine ring is the hydrogen-bond acceptor, while two hydroxyl O atoms act as hydrogen-bond donors in intra-molecular O-H⋯N and intermolecular O-H⋯N and O-H⋯O hydrogen bonds, thereby forming a closed hydrogen-bonded cage.

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Project description:In the title compound, C(21)H(15)N(7)O(6)·2C(3)H(7)NO·3H(2)O, the N(2),N(2')-bis-(3-nitro-benzyl-idene)pyridine-2,6-dicarbohydrazide and one water mol-ecule are located on a twofold rotation axis. The mol-ecules are connected by hydrogen bonds. One dimethylformamide molecule is disordered over two positions; the site occupancy factors are ca 0.8 and 0.2.

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Project description:The title compound, [Cu(2)(C(2)O(4))(C(10)H(8)N(2))(4)](ClO(4))(2)·2C(3)H(7)NO·H(2)O, contains doubly charged centrosymmetric dinuclear oxalato-bridged copper(II) complex cations, perchlorate anions, and DMF and water solvate mol-ecules. In the complex cation, the oxalate ligand is coordinated in a bis-bidentate bridging mode to the Cu atoms. Each Cu atom has a distorted tetra-gonal-bipyramidal environment, being coordinated by two N atoms of the two chelating bipy ligands and two O atoms of the doubly deprotonated oxalate anion. Pairs of perchlorate anions and water mol-ecules are linked into recta-ngles by O-H?O bonds in which the perchlorate O atoms act as acceptors and the water mol-ecules as donors. Methyl groups of the DMF solvent molecule are disordered over two sites with occupancies of 0.453?(7):0.547?(7), and the water molecule is half-occupied.

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