Dipolar 1, 3-cycloaddition of thioformaldehyde S-methylide (CH2SCH2) to ethylene and acetylene. A comparison with (valence) isoelectronic O3, SO2, CH2OO and CH2SO. - Zoi Salta; Mauricio Vega-Teijido; Aline Katz; Nicola Tasinato; Vincenzo Barone; Oscar N. Ventura (J. Comput. Chem., 2022)