Author/Authors :
Verhoeven، نويسنده , , A. and Verel، نويسنده , , R. and Meier، نويسنده , , B.H.، نويسنده ,
Abstract :
J cross polarization in magic-angle-spinning (MAS) solid-state NMR spectroscopy is demonstrated. In the fast spinning limit, pure J cross polarization can be obtained at the centerband of the Hartmann-Hahn matching profile while dipolar cross polarization takes place at the sideband. Transient oscillations with the phase- and intensity patterns characteristic for the J-cross-polarization process are observed.
