Abstract: In this paper, we describe a new type of two-dimensional resolved MAS experiments involving a preparation period utilizing cross polarization, several π pulses applied at the TOSS timings and a π/2 pulse, an evolution period in which the magnetization vector is in the z axis and a mixing period composed of a π/2 pulse and a TOSS sequence. The experimental schemes proposed in this paper can yield a complete separation of isotropic and anisotropic chemical shifts, which is a complementary method to the Kolbert's experiment^[5].

Key words: Rotational sidebands, 2D spectrum, Resolved experiment