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The effect of high external pressures on the infrared and Raman spectra of crystalline tetra-n-propylammonium bromide
- Source :
- Vibrational Spectroscopy. 51:251-254
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- The infrared and Raman spectra of crystalline tetra-n-propylammonium bromide, (n-C 3 H 7 ) 4 NBr, have been measured in the 3000 – 700 cm −1 region and vibrational assignments are proposed in part on the basis of the known crystal structure. Pressure-tuning infrared and Raman studies of this material were also undertaken using a diamond-anvil cell. There is a pressure-induced phase transition occurring between 1.8 and 2.1 GPa, which is most likely a second-order transition. Some differences are noted between the infrared data reported here and those given in an earlier high-pressure infrared study. The spectroscopic results will be useful in examining zeolites involving (n-C 3 H 7 ) 4 NBr as a template.
Details
- ISSN :
- 09242031
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- Vibrational Spectroscopy
- Accession number :
- edsair.doi...........e654ef3d2be2a84bc881562325f71108