2-Amino-5-methylpyridinium 4-carboxybutanoate

In the title salt, C6H9N2 +·C5H7O4 −, the 2-amino-5-methylpyridinium cation is essentially planar, with a maximum deviation of 0.008 (1) Å. In the crystal, the protonated N atom and the 2-amino group are hydrogen bonded to the carboxylate O atoms via a pair of N—H⋯O hydrogen bonds, forming an R 2 2(8) ring motif. The 4-carboxybutanoate anions are linked via O—H⋯O hydrogen bonds. The crystal structure is further stabilized by weak C—H⋯O interactions.

[1]  A. M. Glazer,et al.  A nitrogen‐gas‐stream cryostat for general X‐ray diffraction studies , 1986 .

[2]  Professor Dr. George A. Jeffrey,et al.  Hydrogen Bonding in Biological Structures , 1991, Springer Berlin Heidelberg.

[3]  G. A. Jeffrey,et al.  An Introduction to Hydrogen Bonding , 1997 .

[4]  Hoong-Kun Fun,et al.  2,7-Bis(trichloromethyl)-1,8-naphthyridine1 , 2010, Acta crystallographica. Section E, Structure reports online.

[5]  Steve Scheiner,et al.  Hydrogen Bonding: A Theoretical Perspective , 1997 .

[6]  X-ray studies on crystalline complexes involving amino acids and peptides. XXXVII. Novel aggregation patterns and effect of chirality in the complexes of DL- and L-lysine with glutaric acid. , 2001, Acta crystallographica. Section B, Structural science.

[7]  Alan R. Katritzky,et al.  Comprehensive Heterocyclic Chemistry IV , 1996 .

[8]  Madhukar Hemamalini,et al.  2-Amino-5-methylpyridinium 3-aminobenzoate , 2010, Acta crystallographica. Section E, Structure reports online.

[9]  Olga Kennard,et al.  Tables of bond lengths determined by X-ray and neutron diffraction. Part 1. Bond lengths in organic compounds , 1987 .

[10]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[11]  Anthony L. Spek,et al.  Structure validation in chemical crystallography , 2009, Acta crystallographica. Section D, Biological crystallography.

[12]  G. Sheldrick.  A short history of SHELX. , 2008, Acta crystallographica. Section A, Foundations of crystallography.

[13]  Raymond E. Davis,et al.  Patterns in Hydrogen Bonding: Functionality and Graph Set Analysis in Crystals , 1995 .