title: Crystal structure of fenbuconazole.
abstract: In the title compound, C19H17ClN4 [systematic name: (RS)-4-(4-chloro-phen-yl)-2-phenyl-2-(1H-1,2,4-triazol-1-ylmeth-yl)butyro-nitrile], which is the conazole fungicide fenbuconazole, the dihedral angles between the planes of the central benzene and the terminal chloro-phenyl and triazole rings are 32.77 (5) and 32.97 (5)°, respectively. The C-C-C-C linkage between the tertiary C atom and the benzene ring has an anti orientation [torsion angle = 174.47 (12)°]. In the crystal, C-H⋯N hydrogen bonds and very weak C-Cl⋯π inter-actions [Cl⋯π = 3.7892 (9) Å] link adjacent mol-ecules, forming two-dimensional networks lying parellel to the (101) plane. The planes are linked by weak π-π inter-actions [centroid-centroid separation = 3.8597 (9) Å], resulting in a three-dimensional architecture.
authors.affiliation: Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang, National University, Jinju 52828, Republic of Korea.
authors.forename: Gihaeng
authors.initials: G
authors.lastname: Kang
authors.affiliation: Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang, National University, Jinju 52828, Republic of Korea.
authors.forename: Jineun
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang, National University, Jinju 52828, Republic of Korea.
authors.forename: Hyunjin
authors.initials: H
authors.lastname: Park
authors.affiliation: Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang, National University, Jinju 52828, Republic of Korea.
authors.forename: Tae Ho
authors.initials: TH
authors.lastname: Kim
keywords: C—Cl⋯π inter­actions; crystal structure; fenbuconazole; fungicide; π–π inter­actions