Solid-state 2D-heteronuclear aluminum-27-phosphorus-31 correlation NMR spectroscopy of aluminophosphate VPI-5.
A new 2-dimensional(2D)-heteronuclear correlation pulse sequence for solids under magic-angle spinning conditions was developed. The expt. makes it possible to correlate spectra of 2 different nuclei through the weak heteronuclear dipolar coupling and provides an alternative when cross-polarization or the J-coupling are inappropriate for the transfer of coherence. This sequence was applied to aluminophosphate mol. sieve VPI-5.
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