Publication
Names
  • Ray L. Frost
  • Matt C. Hales
  • Daria L. Wain
Title
Raman spectroscopy of smithsonite
Abstract
Raman spectroscopy at both 298 and 77 K has been used to study a series of selected natural smithsonites from different origins. An intense sharp band at 1092 cm1 is assigned to the CO32 symmetric stretching vibration. Impurities of hydrozincite are identified by a band around 1060 cm1. An additional band at 1088 cm1 which is observed in the 298 K spectra but not in the 77 K spectra is attributed to a CO32 hot band. Raman spectra of smithsonite show a single band in the 1405–1409 cm1 range assigned to the ν3 (CO3)2 antisymmetric stretching mode. The observation of additional bands for the ν3g modes for some smithsonites is significant in that it shows distortion of the ZnO6 octahedron. No ν2 bending modes are observed for smithsonite. A single band at 730 cm1 is assigned to the ν4 in phase bending mode.Multiple bands be attributed to the structural distortion are observed for the carbonate ν4 in phase bending modes in the Raman spectrum of hydrozincite with bands at 733, 707 and 636 cm1. An intense band at 304 cm1 is attributed to the ZnO symmetric stretching vibration.
Keywords
Raman spectroscopy, band position, low temperature, minerals, carbonates, smithsonite, ZnCO3, hydrozincite, Zn5(CO3)2(OH)6
Content
band list data, spectral data, experimental physics
Year
2008
Journal
Journal of Raman Spectroscopy
Volume
39
Number
1
Pages
108 - 114
Pages number
7
Document type
article
Publication state
published