Author/Authors :
Espinosa، نويسنده , , Catalina A. and Thureau، نويسنده , , Pierre and Shapiro، نويسنده , , Rebecca A. and Litvak، نويسنده , , Ilya M. and Martin، نويسنده , , Rachel W.، نويسنده ,
Abstract :
In systems where the dipolar couplings are partially averaged by molecular motion, cross-polarization is modulated by sample spinning. The cross-polariation efficiency in variable angle spinning (VAS) and Switched Angle Spinning (SAS) experiments on mobile samples is therefore strongly dependent on the spinning angle. We describe simulations and experimental measurements of these effects over a range of spinning angles from 0° to 90°.
