title: Nonaaqua-praseodymium triiodide-thio-urea (1/2).
abstract: The title compound, [Pr(H(2)O)(9)]I(3)·2CS(NH(2))(2), an adduct of nona-aqua-praseodymium triiodide with two thio-urea mol-ecules, is composed from [Pr(H(2)O)(9)](3+) cations (polyhedron: monocapped tetra-gonal anti-prism), noncoordinated thio-urea mol-ecules and iodide anions. The components are evidently connected by hydrogen bonds but in the presence of heavy atoms water H atoms have not been located. The complex cation and one of the two independent iodide anions are located on a twofold axis.
authors.forename: Taisia A
authors.initials: TA
authors.lastname: Antonenko
authors.forename: Lyudmila Yu
authors.initials: LY
authors.lastname: Alikberova
authors.forename: Dmitry V
authors.initials: DV
authors.lastname: Albov