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Magic angle spinning . See

Salaiin J (2000) Cyclopropane Derivates and their Diverse Biological Activities. 207 1-67 Samoson A, Tuherm T, Past J, Reinhold A, Anupold T, Heinmaa 1 (2005) New Horizons for Magic-Angle Spinning NMR. 246 15-31 Sanz-Cervera JF, see Williams RM (2000) 209 97-173 Sartor V, see Astruc D (2000) 210 229-259 Sato S,see Furukawa N (1999) 205 89-129 Saudan C,see Balzani V (2003) 228 159-191 Sauvage J-P, see Dietrich-Buchecker C (2005) 249 in press... [Pg.266]

Fig. 4. Quadrupolar powder patterns (a) Spin NMR powder pattern showing that the central -)<- ) transition is broadened only by dipolar coupling, chemical shift anisotropy, and the second-order quadrupolar interactions, (b) Spin 1 NMR powder pattern for a nucleus in an axially symmetric electric field gradient (see text). The central doublet corresponds to 6 = 90° in Eq. (10). The other features of low intensity correspond to 6 = 0° and 6 = 180°. (c) Theoretical line shape of the ) - -) transition of a quadrupolar nuclear spin in a powder with fast magic-angle spinning for different values of the asymmetry parameter t (IS) ... Fig. 4. Quadrupolar powder patterns (a) Spin NMR powder pattern showing that the central -)<- ) transition is broadened only by dipolar coupling, chemical shift anisotropy, and the second-order quadrupolar interactions, (b) Spin 1 NMR powder pattern for a nucleus in an axially symmetric electric field gradient (see text). The central doublet corresponds to 6 = 90° in Eq. (10). The other features of low intensity correspond to 6 = 0° and 6 = 180°. (c) Theoretical line shape of the ) - -) transition of a quadrupolar nuclear spin in a powder with fast magic-angle spinning for different values of the asymmetry parameter t (IS) ...
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Magic angle spinning

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