Hydrogen-bond networks of 1,3-imidazolidine-2-thione: Synthesis and structures of complexes of silver(I), copper(I), cadmium(II) and zinc(II)

Solution reactions of silver(I), copper(I), cadmium(II) and zinc(II) salts with 1,3-imidazolidine-2-thione (imdt) under diverse conditions yielded four complexes: [Cd(SC3H6N2)2(Ac)2] (1), [Zn(SC3H6N2)2(Ac)2] (2), [Cu2(SC3H6N2)6]SO4 (3) and [Ag2(SC3H6N2)6]SO4 (4). Complexes 1 and 2 are 1D and 2D hydrogen-bond aggregations. Complexes 3 and 4 are isostructural 3D hydrogen-bond networks. The diverse coordination modes of imdt and different anions are the major factors for three distinct hydrogen-bond structures.