  The structure of the particle-hole nucleus 132Sb provides a direct source of
information on the effective neutron-proton interaction in the 132Sn region. We
have performed a shell-model calculation for this nucleus using a realistic
effective interaction derived from the Bonn A nucleon-nucleon potential. The
results are in very good agreement with the experimental data evidencing the
reliability of our effective interaction matrix elements both with isospin T=1
and T=0.
