  We have interpreted recently measured experimental data of $^{77}$Ge, and
also for $^{73,75,79,81}$Ge isotopes in terms of state-of-the-art shell model
calculations. Excitation energies, B(2) values, quadrupole moments and magnetic
moments are compared with experimental data when available. The calculations
have been performed with the recently derived interactions, namely with JUN45
and jj44b for ${f_{5/2}pg_{9/2}}$ space. We have also performed calculation for
${fpg_{9/2}}$ valence space using an ${fpg}$ effective interaction with
$^{48}$Ca core and imposing a truncation to study the importance of the proton
excitations across the Z=28 shell in this region. The predicted results of
jj44b interaction are in good agreement with experimental data.
