Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1235899 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2007 | 7 Pages |
Abstract
Minerals in the rosasite group namely rosasite, glaucosphaerite, kolwezite, mcguinnessite have been studied by a combination of infrared and Raman spectroscopy. The spectral patterns for the minerals rosasite, glaucosphaerite, kolwezite and mcguinnessite are similar to that of malachite implying the molecular structure is similar to malachite. A comparison is made with the spectrum of malachite. The rosasite mineral group is characterised by two OH stretching vibrations at â¼3401 and 3311 cmâ1. Two intense bands observed at â¼1096 and 1046 cmâ1 are assigned to ν1(CO3)2â symmetric stretching vibration and the δ OH deformation mode. Multiple bands are found in the 800-900 and 650-750 cmâ1 regions attributed to the ν2 and ν4 bending modes confirming the symmetry reduction of the carbonate anion in the rosasite mineral group as C2v or Cs. A band at â¼560 cmâ1 is assigned to a CuO stretching mode.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Ray L. Frost, Daria L. Wain, Wayde N. Martens, B. Jagannadha Reddy,