title: Crystal structure of 4,6-di-amino-2-sulfanyl-idene-1,2-di-hydro-pyridine-3-carbo-nitrile.
abstract: The title compound, C6H6N4S, crystallizes with two independent mol-ecules, A and B, in the asymmetric unit. Both independent mol-ecules are almost planar [maximum deviations of 0.068 (6) Å in mol-ecule A and 0.079 (6) Å in mol-ecule B]. In the crystal, mol-ecules A and B are linked by N-H⋯S, N-H⋯N and C-H⋯S hydrogen bonds, forming a three-dimensional network.
authors.affiliation: Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England ; Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
authors.forename: Shaaban K
authors.initials: SK
authors.lastname: Mohamed
authors.affiliation: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.affiliation: Department of Chemistry, University of Leicester, Leicester, England.
authors.forename: Kuldip
authors.initials: K
authors.lastname: Singh
authors.affiliation: Chemistry Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt.
authors.forename: Bahgat R M
authors.initials: BR
authors.lastname: Hussein
authors.affiliation: Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq.
authors.forename: Mustafa R
authors.initials: MR
authors.lastname: Albayati
keywords: 3-cyano­pyridine-2(1H)-thio­nes; crystal structure; hydrogen bonding; polyfuntional pyridines