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Inne
Crystal structure thermal, dielectric and vibrational studies of the [4-C2H5PyH]4[Sb2Cl10] crystal.
Autorzy
Rok wydania
2004
Czasopismo
Numer woluminu
6
Strony
1273-1286
DOI
10.1016/j.solidstatesciences.2004.06.006
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Crystal structure of tetra(4-ethylpyridinium) decachlorodiantimonate(III), [4-C2H5PyH]4[Sb2Cl10], has been determined at 245 K by X-ray diffraction (tetragonal, space group ). DSC and dilatometric studies indicate a presence of two reversible phase transitions of the first order type, at 370/373 and 233/238 K (cooling/heating) with and 10.1 J mol−1 K−1, respectively. Infrared spectra of polycrystalline [4-C2H5PyH]4[Sb2Cl10] have been studied in the temperature range 20–306 K. Substantial changes in the temperature evolution of frequencies of internal modes of the 4-ethylpyridinium cations near 233 K are due to the ordering of the cationic sublattice. The experimental results indicate that both phase transitions may be classified as the order–disorder ones.
Słowa kluczowe
Chloroantimonates(III), Phase transitions, X-ray diffraction, Dielectric properties, Infrared spectra, FT-Raman spectra
Adres publiczny
https://doi.org/10.1016/j.solidstatesciences.2004.06.006
Strona internetowa wydawcy
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