  In this paper we use the important interferences of Macro-Orbital theory of
superfluidity clubbed with several factors that can change the rotational
constant (B) and vibrational frequency of N2O in 4HeN-N2O clusters with N to
account for the results of their recently reported spectroscopic studies which
conclude that: (i) in spite of the fact that 4He atoms provide an interactive
medium, the rotational spectrum of the clusters shows sharp peaks, similar to
that of the molecule in gaseous state, indicating that the molecule rotates
like a free rotor, (ii) B decreases monotonically from N = 1 to 6, remains
nearly constant for N = 6 to 8 and increases for N = 9 to 10 with small
oscillations there after and (iii) vibrational frequency exhibits blue shift
for N = 1 to 5 and a red shift for higher N.
