It was first synthesized 1940Hieber, W., Scharfenberg, C. "Einwirkung organischer Schwefelverbindungn auf die Carbonyle des Eisens" Chem. Ber. 1949, vol. 73, 1012. with the discovery of isomers in 1962. Synthesis involves treating triiron dodecacarbonyl with dimethyl disulfide:
