First observation of excited states in {sup 175}Hg{sub 95}

Excited states of the neutron-deficient nucleus {sup 175}Hg, populated using fusion-evaporation reactions, are reported for the first time. The spin and parity of the ground state has been determined to be I{sup {pi}}=7/2{sup -} through measurements of the {alpha} decay to the daughter nucleus {sup 171}Pt. A structure based on an isomeric state [T{sub 1/2}=0.34(3) {mu}s] with I{sup {pi}}=13/2{sup +} and its decay path to the ground state have been established. The observed structures are interpreted in terms of single-particle configurations, and the trends of coexisting shapes in neighboring nuclei are discussed.