NMR-crystllographic studies of aluminophosphate AlPO4-40

摘要

In solid-state NMR of inorganic materials,double-resonance (or ~1H triple-resonance) experiments often involve a half-integer quadrupolar ncules that has the disadvantage of exhibiting second-order anisotroopic broadening.However,the introduction of two-dimensional multiple-quantum magic-angle spinning (MQMAS) has been the source of a tremendous improvement in solid-state NMR of half-integer quadrupolar nuclei.