title: (E)-N'-[1-(Thio-phen-2-yl)ethyl-idene]isonicotinohydrazide.
abstract: In the title compound, C(12)H(11)N(3)OS, the dihedral angle between the pyridine and thio-phene rings is 46.70 (9)° and the C-N-N-C torsion angle is 178.61 (15)°. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) loops.
authors.affiliation: Department of Studies in Physics, Manasagangotri, University of Mysore, Mysore 570 006,  India.
authors.forename: C S
authors.initials: CS
authors.lastname: Dileep
authors.forename: M M M
authors.initials: MM
authors.lastname: Abdoh
authors.forename: M P
authors.initials: MP
authors.lastname: Chakravarthy
authors.forename: K N
authors.initials: KN
authors.lastname: Mohana
authors.forename: M A
authors.initials: MA
authors.lastname: Sridhar