Crystal structures of 2-aminopyridine citric acid salts: C5H7N2+·C6H7O7− and 3C5H7N2+·C6H5O73−

Autor: Shet M. Prakash, S. Naveen, N. K. Lokanath, P. A. Suchetan, Ismail Warad

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 8, Pp 1111-1116 (2018)

2-Aminopyridine and citric acid mixed in 1:1 and 3:1 ratios in ethanol yielded crystals of two 2-aminopyridinium citrate salts, viz. C5H7N2+·C6H7O7− (I) (systematic name: 2-aminopyridin-1-ium 3-carboxy-2-carboxymethyl-2-hydroxypropanoate), and 3C5

Externí odkaz: https://doaj.org/article/4675abe29d04464499a20bed8dcdf726

N-[2-(Tri­fluoro­meth­yl)phen­yl]maleamic acid: crystal structure and Hirshfeld surface analysis

Autor: N. K. Lokanath, P.A. Suchetan, S. Naveen, Shet M. Prakash, Ismail Warad

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications
Acta Crystallographica Section E: Crystallographic Communications, Vol 75, Iss 6, Pp 766-769 (2019)

The –COOH group of the title compound adopts a syn conformation (O= C—O—H = 0°) unlike the anti conformation observed in related maleamic acids. This is correlated with the formation of carb­oxy­lic acid inversion dimers linked by pairwise O

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab66485dd45bac025ffc0e4e6727fb31
http://europepmc.org/articles/PMC6658960

Investigation of supramolecular synthons in the crystals of N-(aryl)-succinamic acids and N-(aryl)-maleamic acids: A case study of 4-oxo-4-(pyridin-2-ylamino)butanoic acid

Autor: Prakash Shet M, Lokanath Neratur Krishnappagowda, Naveen Shivalingegowda, Suresha Erachikkaiah, P.A. Suchetan

Publikováno v: Chemical Data Collections. :113-125

4-Oxo-4-(pyridin-2-ylamino)butanoic acid crystallizes with two symmetry independent molecules (A and B) in the asymmetric unit. The crystal structure features hetero R 2 2 ( 8 ) synthon comprising of N H⋯O = C(acid) and O H⋯Npyridyl hydrogen bond

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bc82ab5d3bfd772e11a4ac8578fb8f2
https://doi.org/10.1016/j.cdc.2018.02.002

Crystal structures of 2-amino-pyridine citric acid salts: C

Autor: Shet M, Prakash, S, Naveen, N K, Lokanath, P A, Suchetan, Ismail, Warad

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications

2-Amino­pyridine and citric acid mixed in 1:1 and 3:1 ratios in ethanol yielded crystals of two 2-amino­pyridine citric acid salts, viz. C5H7N2 +·C6H7O7 − (I) and 3C5H7N2 +·C6H5O7 3− (II). Salt I is formed by the protonation of the pyridine N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::2533b4f66b7a49d0ebf9c3815cdfa636
https://pubmed.ncbi.nlm.nih.gov/30116573

N-[2-(Trifluoromethyl)phenyl]maleamic acid: crystal structure and Hirshfeld surface analysis.

Autor: Suchetan, P. A., Prakash, Shet M., Lokanath, N. K., Naveen, S., Wara, Ismail

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications; Jun2019, Vol. 75 Issue 6, p766-769, 8p