Vibrational spectroscopy of the borate mineral olshanskyite Ca3[B(OH)4]4(OH)2
Frost, Ray L., Xi, Yunfei, Scholz, Ricardo, & Costa Alves Pereira, Matheus (2014) Vibrational spectroscopy of the borate mineral olshanskyite Ca3[B(OH)4]4(OH)2. Carbonates and Evaporites, 29(1), pp. 33-39.
The mineral olshanskyite is one of many calcium borate minerals which has never been studied using vibrational spectroscopy. The mineral is unstable and decomposes upon exposure to an electron beam. This makes the elemental analysis using EDX techniques difficult. Both the Raman and infrared spectra show complexity due to the complexity of the structure. Intense Raman bands are found at 989, 1,003, 1,025 and 1,069 cm-1 with a shoulder at 961 cm-1 and are assigned to trigonal borate units. The Raman bands at 1,141, 1,206 and 1,365 cm-1 are assigned to OH in-plane bending of BOH units. A series of Raman bands are observed in the 2,900–3,621cm-1 spectral range and are assigned to the stretching vibrations of OH and water. This complexity is also reflected in the infrared spectra. Vibrational spectroscopy enables aspects of the structure of olshanskyite to be elucidated.
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|Item Type:||Journal Article|
|Keywords:||Raman spectroscopy, Borate, Hydroxyl, Olshanskyite|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 Springer Verlag|
|Copyright Statement:||The final publication is available at Springer via http://dx.doi.org/10.1007/s13146-013-0162-5|
|Deposited On:||12 Aug 2013 23:31|
|Last Modified:||06 May 2015 09:35|
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