title: A triclinic polymorph of 1,3-thiazolidine-2-thione (2-mercaptothiazoline).
abstract: A planar conformation of 1,3-thiazolidine-2-thione (TZDTH), C3H5NS2, was crystallized for the first time. The new triclinic polymorph (P\overline 1) obtained was compared in terms of its intra- and intermolecular geometry with three previous reports of a monoclinic polymorph (P2(1)/n). The packing is based on centrosymmetric dimers of TZDTH, linked by N-H...S hydrogen bonds.
authors.affiliation: Universidade Federal de Alfenas--UNIFAL-MG, Departamento de Ciêcias Exatas, Rua Gabriel Monteiro da Silva 714, CEP 37130-000, Alfenas, MG, Brazil.
authors.forename: Rodrigo S
authors.initials: RS
authors.lastname: Corrêa
authors.forename: Sarita A
authors.initials: SA
authors.lastname: Santana
authors.forename: Rogério
authors.initials: R
authors.lastname: Salloum
authors.forename: Rosalice M
authors.initials: RM
authors.lastname: Silva
authors.forename: Antônio C
authors.initials: AC
authors.lastname: Doriguetto