A deep inelastic reaction using a 460 MeV 82Se beam incident upon a thick 192Os target was performed at the Legnaro National Laboratory, Italy. The resulting \gamma -decays were measured using the GASP array. Results for 194Pt extend the known level scheme of the yrast structure from spin I=(12 \hbar) to (20 \hbar). The irregularities in the sequence of the new transition energies and total Routhian surface calculations show a breakdown in collectivity with an yrast oblate shape remaining to high spin.
PACS numbers: 23.20.Lv, 27.80.+w, 25.70.Hi
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