title: Di-2-pyridyl ketone N4,N4-(butane-1,4-diyl)thiosemicarbazone.
abstract: The title compound, C(16)H(17)N(5)S, is in the thione form and crystallizes with two independent molecules in the asymmetric unit. In both molecules, the pentamethyleneimine five-membered ring adopts an envelope conformation, and in one of the molecules this ring shows positional disorder. The thione S and hydrazine N atoms are in the Z configuration with respect to the C-N bond.
authors.affiliation: X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
authors.forename: Anwar
authors.initials: A
authors.lastname: Usman
authors.forename: Ibrahim Abdul
authors.initials: IA
authors.lastname: Razak
authors.forename: Suchada
authors.initials: S
authors.lastname: Chantrapromma
authors.forename: Hoong Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Varughese
authors.initials: V
authors.lastname: Philip
authors.forename: A
authors.initials: A
authors.lastname: Sreekanth
authors.forename: M R
authors.initials: MR
authors.lastname: Prathapachandra Kurup