ISSN:
1600-5759
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
The conformations of the two approximately isomorphous structures 4′-{[benzoyl(4-chlorophenylhydrazono)methyl]sulfonyl}acetanilide, C22H18ClN3O4S, and 4′-{[benzoyl(4-methoxyphenylhydrazono)methyl]sulfonyl}acetanilide, C23H21N3O5S, are stabilized by resonance-assisted intramolecular hydrogen bonds linking the hydrazone moieties and sulfonyl groups. The stronger bond is observed in the former compound. The difference in electronic properties between the Cl atom and the methoxy group is too small to significantly alter the non-bonding interactions of the sulfonyl and β-carbonyl groups.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108270101010642