Rotational structures inIr181,182,183

Rotational bands in the odd-odd nucleus ${}_{}{}^{182}{}_{}{}^{}\mathrm{Ir}$ and in the odd-mass isotopes ${}_{}{}^{181,183}{}_{}{}^{}\mathrm{Ir}$ have been studied via the fusion-evaporation reactions ${}_{}{}^{172,174}{}_{}{}^{}\mathrm{Yb}$ ${(}^{14}$N,xn) utilizing γ-ray spectroscopy techniques. The different band structures in ${}_{}{}^{182}{}_{}{}^{}\mathrm{Ir}$ are interpreted as specific couplings of proton and neutron single-quasiparticles present in neighboring odd Ir and Os and Pt nuclei.