The decays of three new neutron-rich nuclides ${}_{}{}^{111}{}_{}{}^{}\mathrm{Tc}$, ${}_{}{}^{113}{}_{}{}^{}\mathrm{Ru}$, and ${}_{}{}^{113}{}_{}{}^{}\mathrm{Rh}$ have been observed at an on-line isotope separator facility. In addition, the beta decays of several other n-rich isotopes with A>100 have been studied for the first time. The new half-lives reported in this work include: ${}_{}{}^{111}{}_{}{}^{}\mathrm{Tc}$ [$T_{1/2}$=0.30(3) s], ${}_{}{}^{111}{}_{}{}^{}\mathrm{Ru}$ [2.12(7) s], ${}_{}{}^{112}{}_{}{}^{}\mathrm{Ru}$ [1.75(7) s], ${}_{}{}^{113}{}_{}{}^{}\mathrm{Ru}$ [0.80(10) s], ${}_{}{}^{113}{}_{}{}^{}\mathrm{Rh}$ [2.72(22) s], and ${}_{}{}^{118}{}_{}{}^{}\mathrm{Pd}$ [2.24(17) s]. In general, these results support the microscopic theoretical half-life predictions below Z=50.

• Received 4 April 1988

DOI:https://doi.org/10.1103/PhysRevC.38.931