Bis(2-aminopyridinium) maleate

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Buyukgungor O., Odabasoglu M.

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY, vol.59, 2003 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 59
• Publication Date: 2003
• Doi Number: 10.1107/s0108270103001586
• Journal Name: ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
• Ondokuz Mayıs University Affiliated: No

Abstract

Two cyclic eight-membered hydrogen-bonded rings exist in the title compound, 2C(5)H(7)N(2)(+).C4H2O42-, involving the 2-aminopyridinium and maleate ions. The dihedral angle between the two pyridinium rings hydrogen bonded to the maleate ion is 74.80 (4)degrees. The maleate anion lies on a twofold axis and is linked to the pyridinium cations by intermolecular N-H...O hydrogen bonds. The heterocycle is fully protonated, which enables amino-imino tautomerization.