Heteronuclear Experiments for quadrupoalr nuclei: 3Q HETCOR experiment for spin-5/2, spin-7/2, and spin-9/2 nuclei. 3Q in the indirect dimension for the quadrupole nucleus and MAS in the direct dimension for the spin-1/2 nucleus (mqhetcor.av) MQ-INEPT based 2D heteronuclear correlation experiment between spin 1/2 and half integer nucleus (mqjhetcor.av)