Structural phase transitions in (n-C3H7NH3)2BiBr5 and (n-C3H7NH3)3BiBr6
✍ Scribed by R Jakubas; P Ciapała; G Bator; Z Ciunik; R Decressain; J Lefebre; J Baran
- Book ID
- 108023715
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 643 KB
- Volume
- 217
- Category
- Article
- ISSN
- 0921-4526
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Infrared and Raman spectra (5–3500 cm^−1^) of polycrystalline samples of (C~3~H~7~NH~3~)~2~PbCl~4~ and of its deuterated derivative were investigated in the temperature range 90–300 K. An assignment of the observed bands at room temperature is proposed. A temperature dependence study of
n-C 4 H 9 NH 3 ] 2 [BiBr 5 ] exhibits five solid-solid structural phase transitions; at 309 (1st order), 291 (1st), 240 (1st), 219 (close to 2nd) and at 166 K (1st). The phase transitions at 291 and 240 K are accompanied by distinct dielectric anomalies. The dielectric relaxation process was found t