Repozytorium
Wyszukaj
Kolekcje
Inne
Raman scattering in ferroelectric [NH(CH3)3]3Sb2Cl9 single crystals.
Autorzy
Rok wydania
1989
Czasopismo
Numer woluminu
20
Strony
381-389
DOI
10.1002/jrs.1250200607
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The Raman spectra of ferroelectric [NH(CH3)3]3Sb2Cl9 single crystals were studied at temperatures ranging from 90 to 390 K. An assignment of most of the observed bands is proposed. A second-order phase transition around 364 K leading to a high-temperature paraelectric phase manifested itself by spliting of the antisymmetric CH3 stretching band (3035 cm−1) below the transition temperature. A temperature dependence study revealed the existence of disorder in the crystal. A systematic measurement of the CH3 torsional vibration Raman band (305 cm−1) was performed and the activation energy (Ea = 2.39 kcal mol−1) of an unidentified organic group HN(CH3)3+ motion was extracted from the half-width versus temperature curve.
Adres publiczny
https://doi.org/10.1002/jrs.1250200607
Strona internetowa wydawcy
Podobne publikacje
Raman scattering in ferroelectric (CH3NH3)3Bi2Br9 single crystals.
Miniewicz Andrzej, Jakubas Ryszard, Ecolivet C., Girard A.
Raman scattering in ferroelectric [NH2(CH3)2]3Sb2Cl9 (DMACA).
Miniewicz Andrzej, Lefebvre J., Jakubas Ryszard
Polarization reversal studies of ferroelectric [CH3)3NH]3Sb2Cl9 single crystals.
Połomska M., Jakubas Ryszard