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