Iron Se-bonded mono-selenocarbonates CpFe(CO)2SeCO2R: the first selenocarbonate complexes

The reactivity of the iron selenide complex (μ-Se)[CpFe(CO)2]2 toward chloroformates, ROCOCl, has been studied and the products CpFe(CO)2SeCO2R [R=Me (1), Et (2), iso-Bu (3), Ph (4), 2-C6H4Cl (5), 4-C6H4Cl (6), and 4-C6H4NO2 (7)] have been obtained. The novel complexes, 1–7, have been characterized by elemental analyses, IR and 1H NMR spectroscopy. The solid state structure of CpFe(CO)2SeCO2Et, 2, was determined by an X-ray crystal structure analysis.