Vibrational spectroscopic study of the mineral penkvilksite Na 2 TiSi 4 O 11 ·2H 2 O – a mineral used for the uptake of radionuclides
✍ Scribed by Frost, Ray L.; Xi, Yunfei
- Book ID
- 121288310
- Publisher
- Taylor and Francis Group
- Year
- 2013
- Tongue
- English
- Weight
- 372 KB
- Volume
- 168
- Category
- Article
- ISSN
- 1042-0150
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## Abstract Raman spectra of natrouranospinite complemented with infrared spectra were studied and related to the structure of the mineral. Observed bands were assigned to the stretching and bending vibrations of (UO~2~)^2+^ and (AsO~4~)^3−^ units and of water molecules. UO bond lengths in uranyl
## Abstract The mineral wheatleyite has been synthesised and characterised by Raman spectroscopy complimented with infrared spectroscopy. Two Raman bands at 1434 and 1470 cm^−1^ are assigned to the ν~(CO)~ stretching mode and implies two independent oxalate anions. Two intense Raman bands observed