The structure of near neutron midshell Cd-116 has been investigated via bet
a decay of Ag-116(m) by beta-gamma and gamma-gamma coincidence spectroscopy
. The Ag-116(m) activity was produced by symmetric fission of natural urani
um induced by 25 MeV protons. The ion guide technique has been employed to
produce online mass separated sources. The decay scheme of Ag-116(m) has be
en considerably extended by adding 19 new excited states of Cd-116. The new
ly identified Cd-116 state at 1869.7 keV, along with other four levels near
2 MeV, are interpreted as forming the complete three-phonon quintuplet. Th
e vibrational structure of Cd-116 is discussed in the context of an anharmo
nic vibrator.