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Multiple pulse methods, line narrowing

In 1958, long before dipolar decoupling and multiple pulse methods were developed, a very different approach was introduced in an attempt to narrow magnetic dipolar broadened NMR lines in solids. This method focuses on the geometric part of the Hamiltonians (Eqs. 7.6,7.8, and 7.17), namely the term (3 cos2 0—1). [Pg.195]

MAS is normally applied concurrently with the dipole line-narrowing methods in order to eliminate the effects of CSA and provide true high resolution NMR spectra in the solid phase. For heteronuclear systems the combined method is usually referred to by the initials CP-MAS, and for homonuclear systems the acronym CRAMPS (combined rotation and multiple pulse spectroscopy) has been coined. [Pg.197]

See other pages where Multiple pulse methods, line narrowing is mentioned: [Pg.183]    [Pg.192]    [Pg.193]    [Pg.197]    [Pg.8]    [Pg.256]    [Pg.321]    [Pg.849]    [Pg.849]    [Pg.307]    [Pg.241]    [Pg.41]    [Pg.63]    [Pg.262]    [Pg.379]    [Pg.24]    [Pg.430]    [Pg.430]    [Pg.3]    [Pg.4]    [Pg.6]    [Pg.372]    [Pg.1477]    [Pg.3307]    [Pg.321]    [Pg.12]    [Pg.129]    [Pg.280]    [Pg.416]    [Pg.168]    [Pg.380]    [Pg.276]    [Pg.358]    [Pg.75]    [Pg.53]    [Pg.319]   
See also in sourсe #XX -- [ Pg.192 , Pg.193 ]



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Line Narrowing by Multiple Pulse Methods

Line methods

Methods multiple

Multiple pulse line-narrowing

Narrow

Narrowing Methods

Pulsed Methods

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