title: Crystal structure of 2-oxo-2H-chromen-3-yl propano-ate.
abstract: In the title compound, C12H10O4, the dihedral angle between the coumarin ring system [maximum deviation = 0.033 (8) Å] and the propionate side chain is 78.48 (8)°. In the crystal, weak C-H⋯O hydrogen bonds generate inversion dimers and and C-H⋯π and π-π inter-actions link the dimers into a three-dimensional network. A quantum chemical calculation is in good agreement with the observed structure.
authors.affiliation: Laboratoire de Cristallographie et Physique Moléculaire, UFR SSMT, Université Félix Houphouët Boigny de Cocody 22 BP 582 Abidjan 22, Côte d'Ivoire.
authors.forename: Eric
authors.initials: E
authors.lastname: Ziki
authors.affiliation: Laboratoire de Chimie Moléculaire et Matériaux, Equipe de Chimie Organique et Phytochimie, Université Ouaga I Pr Joseph KI-ZERBO 03 BP 7021 Ouagadougou 03, Burkina Faso.
authors.forename: Jules
authors.initials: J
authors.lastname: Yoda
authors.affiliation: Laboratoire de Chimie Moléculaire et Matériaux, Equipe de Chimie Organique et Phytochimie, Université Ouaga I Pr Joseph KI-ZERBO 03 BP 7021 Ouagadougou 03, Burkina Faso.
authors.forename: Abdoulaye
authors.initials: A
authors.lastname: Djandé
authors.affiliation: Laboratoire de Chimie Moléculaire et Matériaux, Equipe de Chimie Organique et Phytochimie, Université Ouaga I Pr Joseph KI-ZERBO 03 BP 7021 Ouagadougou 03, Burkina Faso.
authors.forename: Adama
authors.initials: A
authors.lastname: Saba
authors.affiliation: Laboratoire de Cristallographie et Physique Moléculaire, UFR SSMT, Université Félix Houphouët Boigny de Cocody 22 BP 582 Abidjan 22, Côte d'Ivoire.
authors.forename: Rita
authors.initials: R
authors.lastname: Kakou-Yao
keywords: C—H⋯π inter­actions; chromane; crystal structure; quantum-chemical calculations; π–π inter­actions