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Bis(2,3-diamino-pyridinium) succinate trihydrate.

Fun HK, Balasubramani K, Yeap CS - Acta Crystallogr Sect E Struct Rep Online (2009)

Bottom Line: The pyridine N atom of the 2,3-diamino-pyridine mol-ecule is protonated.The protonated N atom and one of the 2-amino H atoms are hydrogen bonded to the succinate anion through a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif.In the crystal, mol-ecules are consolidated into a three-dimensional network by N-H⋯O and O-H⋯O inter-actions.

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Affiliation: X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.

ABSTRACT
In the title salt, 2C(5)H(8)N(3) (+)·C(4)H(4)O(4) (2-)·3H(2)O, the asymmetric unit contains a protonated 2,3-diamino-pyridinium cation, half of a succinate dianion (disposed about a centre of inversion), and one and a half water mol-ecules. One of the water mol-ecules is disordered over two sites with occupancies of 0.670 (17) and 0.330 (17). The other water mol-ecule has an occupancy of 0.5 (from refinement). The pyridine N atom of the 2,3-diamino-pyridine mol-ecule is protonated. The protonated N atom and one of the 2-amino H atoms are hydrogen bonded to the succinate anion through a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. In the crystal, mol-ecules are consolidated into a three-dimensional network by N-H⋯O and O-H⋯O inter-actions.

No MeSH data available.


Related in: MedlinePlus

Part of the crystal packing showing the overall 3-D hydrogen-bonding network in (I). Dashed lines indicate the hydrogen bonding.
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Fap2: Part of the crystal packing showing the overall 3-D hydrogen-bonding network in (I). Dashed lines indicate the hydrogen bonding.


Bis(2,3-diamino-pyridinium) succinate trihydrate.

Fun HK, Balasubramani K, Yeap CS - Acta Crystallogr Sect E Struct Rep Online (2009)

Part of the crystal packing showing the overall 3-D hydrogen-bonding network in (I). Dashed lines indicate the hydrogen bonding.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2977310&req=5

Fap2: Part of the crystal packing showing the overall 3-D hydrogen-bonding network in (I). Dashed lines indicate the hydrogen bonding.
Bottom Line: The pyridine N atom of the 2,3-diamino-pyridine mol-ecule is protonated.The protonated N atom and one of the 2-amino H atoms are hydrogen bonded to the succinate anion through a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif.In the crystal, mol-ecules are consolidated into a three-dimensional network by N-H⋯O and O-H⋯O inter-actions.

View Article: PubMed Central - HTML - PubMed

Affiliation: X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.

ABSTRACT
In the title salt, 2C(5)H(8)N(3) (+)·C(4)H(4)O(4) (2-)·3H(2)O, the asymmetric unit contains a protonated 2,3-diamino-pyridinium cation, half of a succinate dianion (disposed about a centre of inversion), and one and a half water mol-ecules. One of the water mol-ecules is disordered over two sites with occupancies of 0.670 (17) and 0.330 (17). The other water mol-ecule has an occupancy of 0.5 (from refinement). The pyridine N atom of the 2,3-diamino-pyridine mol-ecule is protonated. The protonated N atom and one of the 2-amino H atoms are hydrogen bonded to the succinate anion through a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. In the crystal, mol-ecules are consolidated into a three-dimensional network by N-H⋯O and O-H⋯O inter-actions.

No MeSH data available.


Related in: MedlinePlus