High-spin states in the neutron-deficient 113I nucleus have been inves
tigated for the first time using the Ni-58(Ni-58,3pgamma) reaction. Ga
mma-ray coincidence data were acquired with the Eurogam spectrometer i
n conjunction with the Daresbury recoil mass separator. A deformed int
ruder band has been established extending to a spin approaching 40HBAR
and excitation energy 30 MeV. A possible structure for the band is di
scussed. This is the first evidence for such a band in this mass regio
n with Z>51.