2,4-Dichloro-<i>N</i>-(3,5-dimethylphenyl)benzenesulfonamide

The synthesis and evaluation of the pharmacological activities of molecules containing the sulfonamide moiety have attracted interest as these compounds are important pharmacophores. The crystal structures of three closely related N-aryl-2,5-dimethoxybenzenesulfonamides, namely N-(2,3-dichlorophenyl)-2,5-dimethoxybenzenesulfonamide, C 14 H 13 Cl 2 NO 4 S, (I), N-(2,4-dichlorophenyl)-2,5-dimethoxybenzenesulfonamide, C 14 H 13 Cl 2 NO 4 S, (II), and N-(2,4-dimethylphenyl)-2,5-dimethoxybenzenesulfonamide, C 16 H 19 NO 4 S, (III), are described. The asymmetric unit of (I) consists of two symmetry-independent molecules, while those of (II) and (III) contain one molecule each. The molecular conformations are stabilized by different intramolecular interactions, viz. C-HÁ Á ÁO interactions in (I), N-HÁ Á ÁCl and C-HÁ Á ÁO interactions in (II), and C-HÁ Á ÁO interactions in (III). The crystals of the three compounds display different supramolecular architectures built by various weak intermolecular interactions of the types C-HÁ Á ÁO, C-HÁ Á ÁCl, C-HÁ Á Á(aryl), (aryl)-(aryl) and ClÁ Á ÁCl. A detailed Hirshfeld surface analysis of these compounds has also been conducted in order to understand the relationship between the crystal structures. The d norm and shape-index surfaces of (I)-(III) support the presence of various intermolecular interactions in the three structures. Analysis of the fingerprint plots reveals that the greatest contribution to the Hirshfeld surfaces is from HÁ Á ÁH contacts, followed by HÁ Á ÁO/OÁ Á ÁH contacts. In addition, comparisons are made with the structures of some related compounds. Putative N-HÁ Á ÁO hydrogen bonds are observed in 29 of the 30 reported structures, wherein the N-HÁ Á ÁO hydrogen bonds form either C(4) chain motifs or R 2 2 (8) rings. Further comparison reveals that the characteristics of the N-HÁ Á ÁO hydrogen-bond motifs, the presence of other interactions and the resultant supramolecular architecture is largely decided by the position of the substituents on the benzenesulfonyl ring, with the nature and position of the substituents on the aniline ring exerting little effect. On the other hand, the crystal structures of (I)-(III) display several weak interactions other than the common N-HÁ Á ÁO hydrogen bonds, resulting in supramolecular architectures varying from one-to three-dimensional depending on the nature and position of the substituents on the aniline ring.

show abstract

Different supramolecular architectures mediated by different weak interactions in the crystals of three N-aryl-2,5-dimethoxybenzenesulfonamides

Shakuntala¹,

Naveen

Lokanath

et al. 2017

Acta Crystallogr C

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

2,4-Dichloro-N-(3,5-dimethylphenyl)benzenesulfonamide

Cited by 1 publication

References 9 publications

Different supramolecular architectures mediated by different weak interactions in the crystals of three N-aryl-2,5-dimethoxybenzenesulfonamides

Different supramolecular architectures mediated by different weak interactions in the crystals of three N-aryl-2,5-dimethoxybenzenesulfonamides

Contact Info

Product

Resources

About