Open AccessSupramolecular structures of three isomeric 2‐chloro‐ N ‐(nitrophenyl)nicotinamides
Author(s) -
De Souza Marcus V. N.,
Vasconcelos Thatyana R. A.,
Wardell Solange M. S. V.,
Wardell James L.,
Low John N.,
Glidewell Christopher
Publication year - 2005
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
eISSN - 1600-5759
pISSN - 0108-2701
DOI - 10.1107/s0108270105003586
Subject(s) - hydrogen bond , nicotinamide , chemistry , ring (chemistry) , nitro , supramolecular chemistry , stereochemistry , crystallography , medicinal chemistry , molecule , crystal structure , organic chemistry , enzyme , alkyl
Molecules of 2‐chloro‐ N ‐(2‐nitrophenyl)nicotinamide, C 12 H 8 ClN 3 O 3 , are linked by two C—H·O hydrogen bonds into a chain of edge‐fused (14) and (24) rings. In 2‐chloro‐ N ‐(3‐nitrophenyl)nicotinamide monohydrate, C 12 H 8 ClN 3 O 3 ·H 2 O, the molecules are linked by a combination of N—H·O, O—H·O and O—H·N hydrogen bonds into a chain of edge‐fused rings containing two distinct types of (16) ring. In 2‐chloro‐ N ‐(4‐nitrophenyl)nicotinamide, C 12 H 8 ClN 3 O 3 , which crystallizes with Z ′ = 2 in space group P 2 1 / n , the molecules are linked by two N—H·N hydrogen bonds into simple (12) chains.