Grignard reagents, given by RMgX, with R being a monoanionic organic substituent and X being a halide, are thought to proceed through some magnesium(I) intermediates, such as RMgMgX. It is believed that some of the transformations that occur with Grignard reagents may proceed via single electron transfer. This proceeds from the RMg to the substrate. Organic one electron reductions are also believed to be in equilibrium with a univalent magnesium compounds such as XMgMgX. This reagent could have potential to be more selective when compared to other reducing agents, such as samarium(II) Iodide, SmI,  that also acts as a one electron reductant.