  In this work we experimentally study the efficiency of various dynamical
decoupling sequences for suppressing decoherence of single as well as multiple
quantum coherences on large spin-clusters. The system involves crystallites of
a powdered sample containing a large number of molecular protons interacting
via long-range dipole-dipole interaction. The multiple quantum coherences are
prepared by progressively creating correlations in the spin lattice using
standard pulse sequences implementing two-quantum average Hamiltonian. The spin
system is then subjected to various dynamical decoupling sequences, followed by
conversion into observable single quantum coherence by using time-reversal
sequence. The experiments reveal superior performance of the recently
introduced RUDD sequences in suppressing the decoherence.
