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Inne
Molecular dynamics in ferroelectric 4-aminopyridinium tetrachloroantimonate(III), [4-NH2C5H4NH][SbCl4].
Autorzy
Rok wydania
2003
Czasopismo
Solid State Nuclear Magnetic Resonance
Numer woluminu
24
Strony
209-217
DOI
10.1016/j.ssnmr.2003.07.001
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Proton spin–lattice relaxation time and second moment of polycrystalline [4-NH2C5H4NH][SbCl4] have been determined at 160–400 K, at 90 and 25 MHz. The temperature dependence of the second moment indicates that the cation is in the “frozen” state over that temperature range, while at higher temperatures it oscillates at an angle of 135° to the pseudo-six-fold axis of the aromatic ring. Weak influence of different phase transitions on the temperature dependences of relaxation times T1 and T1D can be explained in terms of molecular dynamics.
Słowa kluczowe
4-Aminopyrydium cation, Chloroantimonate(III), Relaxation time, Second moment of NMR line
Adres publiczny
https://doi.org/10.1016/j.ssnmr.2003.07.001
Strona internetowa wydawcy
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