jodowodor

Jodowodor, also known as iodine monohydride (IH), is a simple diatomic molecule composed of iodine and hydrogen. It is a transient species, meaning it exists only briefly under specific conditions, typically in low-temperature environments or during chemical reactions. Jodowodor is not stable under normal conditions and decomposes rapidly into its constituent elements, iodine (I₂) and hydrogen (H₂).

The molecule was first detected in the laboratory in 2010 by researchers studying the chemistry of interstellar ice analogs. These experiments involved exposing frozen mixtures of hydrogen and iodine to ultraviolet (UV) radiation, simulating conditions found in space. The detection was made using infrared spectroscopy, which identified the characteristic vibrational transitions of the molecule.

Jodowodor is of interest in astrochemistry due to its potential presence in interstellar and circumstellar environments. Its formation is thought to occur through the photolysis (breakdown by light) of hydrogen iodide (HI) or through reactions involving atomic hydrogen and iodine. While it is not yet confirmed to exist naturally in space, its detection in laboratory simulations supports the idea that similar molecules may form in cosmic settings.

The molecule’s fleeting nature and reactivity make it difficult to study extensively, but its detection provides insights into the chemical processes that occur in cold, dense regions of space, such as molecular clouds. Further research may help clarify its role in the formation of more complex organic molecules in astrophysical environments.