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Inne
Phase transitions in halogenoantimonates(V) crystals ; [N(CH3)4]SbCl6 and [N(C2H5)4]SbCl6.
Autorzy
Rok wydania
1998
Czasopismo
Journal of Physics and Chemistry of Solids
Numer woluminu
59
Strony
1487-1498
DOI
10.1016/S0022-3697(98)00231-5
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
New crystals of the family of alkylammonium chloroantimonates(V), [N(CH3)4]SbCl6 and [N(C2H5)4]SbCl6, have been grown and systematically studied. X-ray studies show that [N(C2H5)4]SbCl6 is composed of isolated cations and ideal SbCl6− octahedra. Differential scanning calorimetry, dilatometric and dielectric measurements reveal structural phase transitions in [N(CH3)4]SbCl6 and [N(C2H5)4]SbCl6 of first order at 236 and 345 K, respectively. The measurements of 1H-NMR spin-lattice relaxation times, T1, show that mechanism of the phase transitions in [N(CH3)4]SbCl6 and [N(C2H5)4]SbCl6 is due to the reorientations of the tetraalkylammonium cations.
Słowa kluczowe
D. phase transitions, D. dielectric properties, C. differential scanning calorimetry (DSC), D. nuclear magnetic resonance (NMR)
Adres publiczny
https://doi.org/10.1016/S0022-3697(98)00231-5
Strona internetowa wydawcy
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