“…It can be seen that the energies of the gb members increase with mass number displaying a significant change between 186pt and 188Pt, which is interpreted as a transition from predominantly prolate to predominantly oblate shape [1,5,14]. The members of the predominantly oblate i 13/2 two-quasineutron bands in 188, 190, 192pt [1,5,15] connected by dashed lines show a slight decrease of the excitation energy with increasing mass number. The levels belonging to the newly established (+, 0)1 band in 186pt follow very well this energy dependence, indicating that this band also has an il 3/2 two-quasineutron configuration and that the nuclear shape is predominantly oblate,…”