Repozytorium

Crystal structure thermal, dielectric and vibrational studies of the [4-C2H5PyH]4[Sb2Cl10] crystal.

Autorzy

Beata Kulicka

Ryszard Jakubas

Adam Pietraszko

Grażyna Bator

Jan Baran

Rok wydania

2004

Czasopismo

Solid State Sciences

Numer woluminu

6

Strony

1273-1286

DOI

10.1016/j.solidstatesciences.2004.06.006

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

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

http://www.elsevier.com

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2010

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