Crystal structures of three 6-substituted coumarin-3-carboxamide derivatives

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Gomes, LR (Author) Other; Low, JN (Author) Other; Fonseca, A (Author) Other; Matos, MJ (Author) Other; Fernanda Borges (Author) FCUP

Journal

Title: Acta Crystallographica Section E: Crystallographic Communications

Vol. 72

Pages: 926-+

Publisher: International Union of Crystallography

Indexing

ISI Web of Knowledge - 11 Citations

Scopus - 12 Citations

Other information

Authenticus ID: P-00K-NN5

DOI: 10.1107/s2056989016008665

Abstract (EN): Three coumarin derivatives, viz. 6-methyl-N-(3-methylphenyl)-2-oxo-2H-chromene-3-carboxamide, C18H15NO3 (1), N-(3-methoxyphenyl)-6-methyl-2-oxo-2H-chromene-3-carboxamide, C18H15NO4 (2), and 6-methoxy-N-(3-methoxyphenyl)-2-oxo-2H-chromene-3-carboxamide, C18H15NO5 (3), were synthesized and structurally characterized. The molecules display intramolecular N-H center dot center dot center dot O and weak C-H center dot center dot center dot O hydrogen bonds, which probably contribute to the approximate planarity of the molecules. The supramolecular structures feature C-H center dot center dot center dot O hydrogen bonds and pi-pi interactions, as confirmed by Hirshfeld surface analyses.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 20