High-spin states have been studied in the ${}^{97}\mathrm{Mo}$ nucleus with the reaction ${}^{82}\mathrm{Se}{(}^{19}\mathrm{F},p3n\gamma )$ at 68 MeV. The main experimental result is the observation of the $\nu h_{11/2}$ quasiband structure up to the ${31/2}^{-}$ state at $E_x=5.5\mathrm{}\mathrm{MeV}.$ The systematic behavior of this structure along the isotopic and isotonic sequences is presented. The structure of the ${}^{97}\mathrm{Mo}\mathrm{}$ is discussed in terms of the interacting boson-fermion model 1.

• Received 5 July 2000

DOI:https://doi.org/10.1103/PhysRevC.63.014306