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Frequency-dependent dipolar cross-polarization

Properties of the selective pulses are used therefore twofold in such experiments. Firstly, a selective pulse selectively perturbs the selected spin and the perturbation is distributed in the course of the experiment among the coupled spins, depending on the type of coupling (scalar, dipolar) and depending on the type of exchange mechanism (polarization transfer, cross polarization or cross relaxation). Secondly, the phase (selective 90° pulse) or the frequency (selective 180° pulse) of the selective pulse serve to label the response of both the selected and the residual coupled spins as positive or negative. [Pg.24]


See other pages where Frequency-dependent dipolar cross-polarization is mentioned: [Pg.74]    [Pg.45]    [Pg.206]    [Pg.256]    [Pg.96]    [Pg.133]    [Pg.202]    [Pg.1308]    [Pg.213]    [Pg.546]    [Pg.100]    [Pg.840]    [Pg.60]    [Pg.159]   


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Crossed polarizers

Crossed polars

Dipolar polarization

Frequency Dependencies

Frequency dependence

Frequency-dependent dipolar

Polarity dependent

Polarity-dependent polarization

Polarization dependence

Polarization dependency

Polarizer crossed

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