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Oxalic acid-pyridine-4-carbonitrile (1/2).

Zheng WN - Acta Crystallogr Sect E Struct Rep Online (2012)

Bottom Line: Neighboring mol-ecules within the stacks are related by translation in the a direction, with inter-planar distances of 3.183 (1) and 3.331 (2) Å, respectively.Each oxalic acid mol-ecule forms strong O-H⋯N hydrogen bonds with two mol-ecules of pyridine-4-carbonitrile.Besides this, there are also weak C-H⋯O inter-actions.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.

ABSTRACT
In the title compound, 2C(6)H(4)N(2)·C(2)H(2)O(4), the oxalic acid mol-ecule lies about an inversion center. The pyridine ring of the pyridine-4-carbonitrile mol-ecule is almost planar, the largest deviation from the least-squares plane being 0.006 (1) Å; the nitrile N atom deviates from this plane by 0.114 (1) Å. In the crystal, the oxalic acid mol-ecules and the pyridine-4-carbonitrile mol-ecules form stacks. Neighboring mol-ecules within the stacks are related by translation in the a direction, with inter-planar distances of 3.183 (1) and 3.331 (2) Å, respectively. Each oxalic acid mol-ecule forms strong O-H⋯N hydrogen bonds with two mol-ecules of pyridine-4-carbonitrile. Besides this, there are also weak C-H⋯O inter-actions.

No MeSH data available.


Related in: MedlinePlus

The crystal packing of the title compound viewed along the a axis and showing the O—H···N, π···π and C—H···O interactions.
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Fap2: The crystal packing of the title compound viewed along the a axis and showing the O—H···N, π···π and C—H···O interactions.


Oxalic acid-pyridine-4-carbonitrile (1/2).

Zheng WN - Acta Crystallogr Sect E Struct Rep Online (2012)

The crystal packing of the title compound viewed along the a axis and showing the O—H···N, π···π and C—H···O interactions.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3379230&req=5

Fap2: The crystal packing of the title compound viewed along the a axis and showing the O—H···N, π···π and C—H···O interactions.
Bottom Line: Neighboring mol-ecules within the stacks are related by translation in the a direction, with inter-planar distances of 3.183 (1) and 3.331 (2) Å, respectively.Each oxalic acid mol-ecule forms strong O-H⋯N hydrogen bonds with two mol-ecules of pyridine-4-carbonitrile.Besides this, there are also weak C-H⋯O inter-actions.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.

ABSTRACT
In the title compound, 2C(6)H(4)N(2)·C(2)H(2)O(4), the oxalic acid mol-ecule lies about an inversion center. The pyridine ring of the pyridine-4-carbonitrile mol-ecule is almost planar, the largest deviation from the least-squares plane being 0.006 (1) Å; the nitrile N atom deviates from this plane by 0.114 (1) Å. In the crystal, the oxalic acid mol-ecules and the pyridine-4-carbonitrile mol-ecules form stacks. Neighboring mol-ecules within the stacks are related by translation in the a direction, with inter-planar distances of 3.183 (1) and 3.331 (2) Å, respectively. Each oxalic acid mol-ecule forms strong O-H⋯N hydrogen bonds with two mol-ecules of pyridine-4-carbonitrile. Besides this, there are also weak C-H⋯O inter-actions.

No MeSH data available.


Related in: MedlinePlus