GeCl
GeCl is a chemical shorthand that can refer to germanium chloride species in general, rather than a single well-defined solid compound under standard conditions. In practice, the most well-characterized germanium chlorides are GeCl2 and GeCl4, which are widely used as reagents in inorganic synthesis and as precursors in semiconductor processing. The simple, isolable diatomic molecule GeCl is not a stable compound at ambient conditions; when mentioned, it often denotes a transient gas‑phase species or a reactive intermediate rather than a isolable solid.
A diatomic germanium monochloride radical, GeCl, has been discussed in the context of high-temperature gas-phase reactions
GeCl may also appear as an intermediate in chlorine‑based processes, such as chemical vapor deposition, plasma
See also: germanium(II) chloride (GeCl2), germanium(IV) chloride (GeCl4), and common germanium chloride adducts such as GeCl2(dioxane).