Knowledge Bank

“The far infra-reel spectrum of $H2O2$ has been obtained in the region $14--690cm-1$ with an average resolution of $0.3cm-1$. Seven hindered rotation bands have been identified and the first five excited states of the internal rotation found to be; 11:43, 254.2, 370.8, 569.3, 7760.0 (in $cm-1$ above the ground state). A good fit to these levels is obtained, in accordance with the theory of Leacock and Hecht (see above abstract), using the hindering potential $V(x)=993\cos x+636\cos 2x+44\cos 3x$ and the bond parameters of Redington, Olsen, and $Cross1$. This potential has a \emph{cis} harrier of $2460cm-1$ a \emph{trans} Earner of $386cm-1$ and a potential minimum $111.5\circ$ from the \emph{cis} configuration.”