Lifetime measurements of the 3(1)-, 5(1)-, and 1(1)- states in Nd-144
show that the absolute E2 and E3 transition rates from the 5(1)- and 1
(1)- states are consistent with their structure being formed by the co
upling of the lowest quadrupole (2(1)+) and octupole (3(1)-) excitatio
ns. A level at 2205 keV has been identified as having J(pi) = 4- and m
ay be another member of this quadrupole-octupole coupled quintuplet. T
he energy spacing of the quintuplet can be explained by anharmonicitie
s in the quadrupole-octupole interaction and the influence of the nu2(
2f7/2, 1i13/2) configuration.