Yrast states of ${}^{106}\mathrm{Sb}$ have been investigated in the ${}^{54}\mathrm{Fe}{(}^{58}\mathrm{Ni},\alpha pn)$ reaction using in-beam $\gamma$-spectroscopic methods and in the ${}^{50}\mathrm{Cr}{(}^{58}\mathrm{N}\mathrm{i},pn)$ reaction performing delayed $\gamma$ and conversion electron studies. A new isomeric state was found at 103 keV with $t_{1/2}=232\mathrm{}\left(21\right)\mathrm{}\hspace{0.5em}\mathrm{ns}.$ The number of states and transitions in the proposed level scheme have been doubled. The experimental results are discussed within the framework of the shell model.

• Received 28 August 1998

DOI:https://doi.org/10.1103/PhysRevC.59.1324