Knowledge Bank

The gas phase spectrum of $N2H2$ has been investigated in the region of $7.6\mu m$ at a resolution of about $0.06cm-1$. Two bands have been identified; one, near $1317cm-1$, is a type C band and must correspond to $\nu 4$ (the hitherto unidentified $Au$ torsional mode) and the other, near $1288cm-1$ is a type A-B hybrid band and corresponds to $\nu 6$ (the $Bu$ bending mode) Analysis of the spectrum is complicated by the simultaneous presence of strong A and B Coriolis interactions which couple the two observed levels.