Knowledge Bank

“The infrared absorption spectra of LiO, $Li2O$ AND $Li2O2$ isolated in solid krypton matrices have been investigated from $300-1000cm-1$. The molecules were generated by vaporising solid $Li2O$ in it high temperature effusion cell and trapped in solid krypton matrices at approximately $4\circ K$ and $20\circ K$. The spectrum indicates that $Li2O$ is almost linear and $Li2O2$ is rhombic with an angle of $116\circ$ at Li atom. On the basis of ionic model the equilibrium angle is found to be $118\circ$. The similarity of Lithium Oxide dimer to Lithium Chloride dimer, along with other details will be discussed.”