title: Crystal structure of 3-[2-(thio-phen-3-yl)ethyn-yl]-2H-chromen-2-one.
abstract: In the title compound, C15H8O2S, the coumarin moiety is approximately planar (r.m.s. deviation of the 11 non-H atoms = 0.025 Å) and is slightly inclined with respect to the plane of the thio-phen-3-yl ring, forming a dihedral angle of 11.75 (8)°. In the crystal, the three-dimensional architecture features a combination of coumarin-thio-phene C-H⋯π and π-π [inter-centroid distance = 3.6612 (12) Å] inter-actions.
authors.affiliation: Departmento de Física, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil.
authors.forename: Ignez
authors.initials: I
authors.lastname: Caracelli
authors.affiliation: Departmento de Física, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil.
authors.forename: Stella H
authors.initials: SH
authors.lastname: Maganhi
authors.affiliation: Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, 05508-900 São Paulo, SP, Brazil.
authors.forename: Hélio A
authors.initials: HA
authors.lastname: Stefani
authors.affiliation: Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, 05508-900 São Paulo, SP, Brazil.
authors.forename: Karina
authors.initials: K
authors.lastname: Gueogjian
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink
keywords: C—H⋯π inter­actions; asymmetric alkyne; coumarin; crystal structure; π–π inter­actions
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