Broadband dipolar recoupling in rotating solids: a numerical comparison of some pulse schemes.
Solid State Nucl Magn Reson
; 11(3-4): 157-68, 1998 Jun.
Article
em En
| MEDLINE
| ID: mdl-9694382
ABSTRACT
A numerical comparison of the dipolar recoupling performance of several previously published homonuclear recoupling schemes under magic angle-spinning conditions is presented. Emphasis is put on the recoupled polarization transfer in a two-spin system where the efficiency is studied as a function of resonance offsets in the presence and absence of chemical-shielding anisotropies. In addition, the effect of the rf field strength is investigated. Powder pattern line shapes are shown in the on-resonance case that reveal the distribution of dipolar couplings for each recoupling scheme. These results are compared to data computed with a purposely misset rf field strength to estimate the pulse scheme sensitivity to rf-inhomogeneity and experimental missettings.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Espectroscopia de Ressonância Magnética
Limite:
Humans
Idioma:
En
Ano de publicação:
1998
Tipo de documento:
Article