Detection of TiH${}_2$ molecule in the interstellar medium is less probable

Abstract

Identification of TiH${}^1$ and TiO${}^2$ has been historical, as the Titanium was first time discovered in the interstellar medium (ISM). After finding TiO${}_2$${}^3$, there is an obvious question about the search of titanium dihydride (TiH${}_2$). The existence of TiH${}_2$ in the ISM is quite probable, as the atomic abundance of hydrogen is about 1900 times larger than that of oxygen. We have discussed that the detection of TiH${}_2$ in the ISM is less probable, though it has a large electric dipole moment.

3 pages, 3 figures, 1 table