Raman spectroscopic investigations of natural jennite from Maroldsweisach, Bavaria, Germany
| Autor: | Rupert Hochleitner, Dirk Müller, Karl Thomas Fehr |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Stereochemistry
Chemistry Lattice vibration 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Intensity ratio Laser 01 natural sciences 0104 chemical sciences law.invention Wavelength Crystallography symbols.namesake law symbols Molecule General Materials Science 0210 nano-technology Raman spectroscopy Spectroscopy Jennite |
| Zdroj: | Journal of Raman Spectroscopy. 47:602-606 |
| ISSN: | 0377-0486 |
| DOI: | 10.1002/jrs.4865 |
| Popis: | A full-range pattern (100-3700 cm(-1)) analysis of natural jennitewas performed for the first time by Raman spectroscopy, applying a polarized laser at a wavelength of 532 nm. A prominent structural feature of jennite is the preferred orientation of Si-tetrahedron and Ca-octahedron chains parallel [010]. The latter ones are additionally coupled to H2O molecules and OH groups. This arrangement leads to a strong dependence on orientation for the intensity ratios of mainly three different regions in the Raman spectra: 180-210, 950-1050 and 3100-3650 cm(-1). These sections can be assigned to Ca-O lattice vibrations, Q(2) Si-tetrahedron stretching and O-H vibrations of H2O molecules and Ca-OH structures, respectively. |
| Databáze: | OpenAIRE |
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