title: Crystal structure of 2-ethyl-3-(4-fluoro-phenyl-sulfon-yl)-5,7-dimethyl-1-benzo-furan.
abstract: In the title compound, C18H17FO3S, the dihedral angle between the plane of the benzo-furan ring [r.m.s. deviation = 0.006 (1) Å] and that of the 4-fluoro-phenyl ring [r.m.s. deviation = 0.004 (1) Å] is 82.45 (4)°. In the crystal, mol-ecules are linked via three different pairs of C-H⋯O hydrogen bonds, forming chains along [001] and enclosing two R (2) 2(10) and one R (2) 2(12) ring motifs. The chains are further linked by π-π inter-actions [inter-centroid distance = 3.566 (1) Å] between the furan rings of inversion-related mol-ecules, forming a two-dimensional network lying parallel to (100).
authors.affiliation: Department of Chemistry, Dongeui University, San 24 Kaya-dong, Busanjin-gu, Busan 614-714, Republic of Korea.
authors.forename: Hong Dae
authors.initials: HD
authors.lastname: Choi
authors.affiliation: Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea.
authors.forename: Uk
authors.initials: U
authors.lastname: Lee
keywords: 4-fluoro­phen­yl; benzo­furan; crystal structure; hydrogen bonds; sulfon­yl; π–π inter­actions.