Multiple-particle γ-ray coincidence techniques have been used to establish the high spin structure of ${}_{}{}^{76}{}_{}{}^{}\mathrm{Rb}$. Two ΔI=1 bands were found built on the $I^{\pi }$${=1\mathrm{}}^{\mathrm{-}}$ ground state and on the $I^{\pi }$${=(4\mathrm{}}^{+}$) isomeric state at 316.8 keV energy. Systematic of positive parity bands seen in the Br-Kr-Rb isotones with N=39 and 41 is discussed.

• Received 29 September 1987

DOI:https://doi.org/10.1103/PhysRevC.38.1083