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Quadrupolar Carr-Purcell -Meiboom - Gill QCPMG pulse sequence

Potassium ( K) (I = 3j2). The quadrupolar Carr-Purcell Meiboom-Gill (QCPMG) and double frequency sweep (DFS)/QCPMG pulse sequences were applied to acquire solid-state NMR spectra of organometallic complexes. The results show there are significant quadrupolar interactions, which depend on temperature, in the polymeric main group metallocenes cyclopenta-dienyl potassium and pentamethylcyclopentadienyl potassium. Sodium and potassium tetraphenylborates were examined by solid-state Na and NMR spectroscopy as mentioned in 2.1.5 Sodium. ... [Pg.112]

CPMG (Carr-Purcell-Meiboom-Gill) pulse sequence to odd-half-integer quadrupolar spin systems. It was found that QCPMG (controlled CPMG) can be one order of magnitude more sensitive than quadrupolar echo MAS experiments. Assisted by numerical simulation, the QCPMG MAS experiments can be used to determine the quadrupolar as well as chemical shift tensors. ... [Pg.66]

See other pages where Quadrupolar Carr-Purcell -Meiboom - Gill QCPMG pulse sequence is mentioned: [Pg.21]    [Pg.274]    [Pg.240]    [Pg.21]    [Pg.274]    [Pg.240]    [Pg.39]    [Pg.97]    [Pg.79]    [Pg.104]    [Pg.66]    [Pg.68]   
See also in sourсe #XX -- [ Pg.21 , Pg.22 , Pg.23 , Pg.161 ]



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Quadrupolar Carr-Purcell Meiboom-Gill pulse sequence

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