2-Oxo-2H-chromen-4-yl 4-methoxybenzoate

Autor: Akoun Abou, Abdoulaye Djandé, Grégoire Danger, Adama Saba, Rita Kakou-Yao
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Acta Crystallographica Section E, Vol 68, Iss 12, Pp o3438-o3439 (2012)
Druh dokumentu: article
ISSN: 16005368
1600-5368
74872257
DOI: 10.1107/S1600536812047666
Popis: In the title molecule, C17H12O5, the chromen-2-one ring and the 4-methoxybenzoate side chain are inclined to one another at a dihedral angle of 69.82 (9)°. The crystal structure features parallel sheets of centrosymmetric R22(6) dimers joined by a C(7) chain, resulting in centrosymetric tetramers of hydrogen-bonded molecules with graph-set motif R44(40). These centrosymetric tetramers are connected by a pair of hydrogen bonds described by an R22(8) ring motif and a C(7) chain via C—H...O interactions. In the structure, there are also π–π stacking interactions between chromene benzene and the six-membered heterocyclic rings [centroid–centroid distance = 3.691 (2) Å] and weak C=O...π interactions [O...(ring centroid) distance = 3.357 (3) Å].
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