Crystal structure of 2-aminopyridinium 6-chloronicotinate

Abstract

In the title salt, C5H7N+·C6H3ClNO−, the 2-amino­pyri­din­ium cation inter­acts with the carboxyl­ate group of the 6-chloro­nicotinate anion through a pair of independent N—H⋯O hydrogen bonds, forming an R 2 2(8) ring motif. In the crystal, these dimeric units are connected further via N—H⋯O hydrogen bonds, forming chains along [001]. In addition, weak C—H⋯N and C—H⋯O hydrogen bonds, together with weak π–π inter­actions, with centroid–centroid distances of 3.6560 (5) and 3.6295 (5) Å, connect the chains, forming a two-dimensional network parallel to (100).

Crystal structures of 2-aminopyridine citric acid salts: C5H7N2 +·C6H7O7 − and 3C5H7N2 +·C6H5O7 3−

“…2-amino-3-methylpyridinium ortho-phthalate (Jin et al, 2001), the two 2-amino-3-methylpyridinium ions are interconnected to the ortho-phthalate ion via a charge-assisted 2-aminopyridinium-carboxylate heterosynthon. This robust pattern is also observed in the crystal structures of 2-aminopyridinium 6-chloronicotinate (Jasmine et al, 2015) and 2-amino-5chloropyridinium pyridine-2-carboxylate monohydrate (Jayanalina et al, 2015a). Single-crystal structures of ten co-crystals that contain 2-acetaminopyridine and a carboxylic acid moiety: 2-acetaminopyridine/fumaric acid have been reported by Aakerö y et al (2006).…”

“…In the absence of other competing functionalities, the occurrence of heterosynthons increased to 97%. Several salts and co-crystals containing 2-aminopyridine or 2-acetaminopyridine and a carboxylic acid moiety have been reported (Jayanalina et al, 2015a,b;Bis & Zaworotko, 2005;Aakerö y et al, 2006;Jasmine et al, 2015;Jin et al, 2001). In all of these reported structures, the charge-assisted 2-aminopyridinium-carboxylate or neutral 2-acetaminopyridine-carboxylic heterosynthon is observed, as suggested by statistical analysis.…”

Synthesis, Growth, Physicochemical Characterization, and Computational Studies on Aminopyridinium Chloronicotinate Single Crystal

“…The obtained results were found to be in good agreement with the reported values. [ 18 ] Table 1 shows a comparison of the obtained single X‐ray diffraction values with the reported data values. Powder X‐ray diffraction analysis was performed on a grown crystal APCN using an XPERT‐PRO Diffractometer system with CUK α radiation ( λ = 1.5406 Å).…”