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NMR determination of dynamics parameters of CH3 groups in P(CH3) 4SbCl6.
Autorzy
Rok wydania
1999
Czasopismo
Solid State Nuclear Magnetic Resonance
Numer woluminu
15
Strony
73-77
DOI
10.1016/s0926-2040(99)00031-4
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The longitudinal relaxation time T1 and the second moment M2 of 1H NMR line in a wide temperature range have been measured for P(CH3)4SbCl6. It was found that two different methyl groups in each tetramethylphosphonium cation perform two different rates of C3 motions. The reduction of the proton second moment M2 just below the temperature of the phase transition Tc2 = 350 K may suggest that the isotropic tumbling of the whole cation [P(CH3)4]+ is involved in the structural change of the crystal lattice induced by the movements of the [SbCl6]- anion.
Adres publiczny
https://doi.org/ 10.1016/s0926-2040(99)00031-4
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