title: Crystal structure of (E)-2-fluoro-benz-aldehyde (pyridin-2-yl)hydrazone.
abstract: The title compound, C12H10FN3, is approximately planar: the dihedral angles between the mean plane of the central N-N=C spacer unit and the fluoro-benzene and pyridine rings are 14.50 (13) and 4.85 (15)°, respectively, while the dihedral angle between the aromatic rings is 16.29 (6)°. The F atom lies at the same side of the mol-ecule as the N atom of the pyridine ring. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds generate R 2 (2)(8) loops. Mol-ecules related by translation in the a direction are linked by two π-π stacking inter-actions involving pairs of benzene rings and pairs of pyridine rings. In each case, the ring-centroid separation is 3.8517 (9) Å. Two chains of this type pass through each unit cell, but there are no direction-specific inter-actions between adjacent chains.
authors.affiliation: PG Department of Chemistry, Jain University, 52 Bellary Road, Hebbal, Bangalore 560 024, India.
authors.forename: Haliwana B V
authors.initials: HB
authors.lastname: Sowmya
authors.affiliation: University B.D.T. College of Engineering (a Constituent College of VTU, Belgaum), Davanagere 577 004, India.
authors.forename: Tholappanavara H
authors.initials: TH
authors.lastname: Suresha Kumara
authors.affiliation: Department of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA.
authors.forename: Jerry P
authors.initials: JP
authors.lastname: Jasinski
authors.affiliation: Department of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA.
authors.forename: Sean P
authors.initials: SP
authors.lastname: Millikan
authors.affiliation: School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, Scotland.
authors.forename: Christopher
authors.initials: C
authors.lastname: Glidewell
keywords: crystal structure; hydrazine; hydrogen bonding; π–π stacking inter­actions