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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Gomes, LR (Autor) Outra; Low, JN (Autor) Outra; Fonseca, A (Autor) Outra; Matos, MJ (Autor) Outra; Fernanda Borges (Autor) FCUP

Revista

Título: Acta Crystallographica Section E: Crystallographic Communications

Vol. 72

Páginas: 926-+

Editora: International Union of Crystallography

Indexação

ISI Web of Knowledge - 11 Citações

Scopus - 12 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 20