کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1235899 | 1495287 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vibrational spectroscopy of selected minerals of the rosasite group
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 66, Issues 4â5, April 2007, Pages 1068-1074
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 66, Issues 4â5, April 2007, Pages 1068-1074
نویسندگان
Ray L. Frost, Daria L. Wain, Wayde N. Martens, B. Jagannadha Reddy,