Six Substituted Thiazolidine-2-thiones

5-tert-Butylthiazolidine-2-thione and 5-Phenylthiazolidine-2-thione

“…1. Bond distances and angles are comparable with values found in this series of compounds (Laknifli, Pierrot, Chanon & Chanon, 1995). In both structures, the conformation of the heterocycle is unchanged: the S1--C2--$2--N3 fragment is planar with C4 on one side and C5 on the other side of the fragment (Table 4).…”

“…In both crystals, a short intermolecular contact between $2 of one molecule and N3 of a neighbouring molecule is observed (Table 3). Owing to the lower electronegativity of the S than the O atom, an N--H...S bond is weaker than an Null .. .O bond and hydrogen bonding between a thione group and an N atom is not common, but this observation has already been made in the TH-2 TH series (Laknifli, Pierrot, Chanon & Chanon, 1995), and in a series of dithione structures (Mizuguchi & Rihs, 1992;Mizuguchi, Arita & Rihs, 1991;Mizuguchi, Rochat & Rihs, 1990). A strong intermolecular bond is generally linear, to within 10 °.…”