QMGreensite_merged

Ix

Iy

Ix

Iy

Iz

Ix

Iy

Iz

Ix

2IzSz

2IySz

2IxSz

2IzSz

Iy

a

b c

d e

Iz

Ωt

a

a

2 pJIS

t

2 pJIS

t

FIGURE 2.6 Transformations of product operators. The product operator
transformations given in [2.225]–[2.237] are represented geometrically.
(a) Transformations under the chemical shift Hamiltonian, (b) rotations induced
by a pulse of x-phase, (c) rotations induced by a pulse of y-phase, and
(c)–(d) transformations under the scalar coupling Hamiltonian.

2.7 PRODUCTOPERATORFORMALISM 87