Frost Ray L, López Andrés, Theiss Frederick L, Romano Antônio Wilson, Scholz Ricardo
School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia.
School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia.
Spectrochim Acta A Mol Biomol Spectrosc. 2015 Jan 5;134:58-62. doi: 10.1016/j.saa.2014.06.097. Epub 2014 Jun 24.
The mineral pectolite NaCa₂Si₃O₈(OH) is a crystalline sodium calcium silicate which has the potential to be used in plaster boards and in other industrial applications. Raman bands at 974 and 1026 cm(-1) are assigned to the SiO stretching vibrations of linked units of Si₃O₈ units. Raman bands at 974 and 998 cm(-1) serve to identify Si₃O₈ units. The broad Raman band at around 936 cm(-1) is attributed to hydroxyl deformation modes. Intense Raman band at 653 cm(-1) is assigned to OSiO bending vibration. Intense Raman bands in the 2700-3000 cm(-1) spectral range are assigned to OH stretching vibrations of the OH units in pectolite. Infrared spectra are in harmony with the Raman spectra. Raman spectroscopy with complimentary infrared spectroscopy enables the characterisation of the silicate mineral pectolite.
矿物硅灰石NaCa₂Si₃O₈(OH)是一种结晶钠钙硅酸盐，有潜力用于石膏板及其他工业应用。974和1026 cm⁻¹处的拉曼谱带归属于Si₃O₈单元连接单元的SiO伸缩振动。974和998 cm⁻¹处的拉曼谱带用于识别Si₃O₈单元。约936 cm⁻¹处的宽拉曼谱带归因于羟基变形模式。653 cm⁻¹处的强拉曼谱带归属于OSiO弯曲振动。2700 - 3000 cm⁻¹光谱范围内的强拉曼谱带归属于硅灰石中OH单元的OH伸缩振动。红外光谱与拉曼光谱一致。拉曼光谱与互补的红外光谱相结合能够对硅酸盐矿物硅灰石进行表征。
