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Spectroscopy at very high pressures: Infrared study of the high pressure phase transitions in NaNO2 and KNO2

✍ Scribed by David M. Adams; Shiv K. Sharma

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
249 KB
Volume
36
Category
Article
ISSN
0009-2614

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✦ Synopsis

Infrared

spect~ ofNaNOz and IWO2 in the rqjon OF the anion internal modes have been obtined using I; diamond anvil ceU at pressures up to 65 kbar. At 39Β°C NaNOZ undergoes a phase transition at LZ. 10.0 kbar, not at 14 kbar as reported from a~. earlier IR study. A similar trawition was found at 6.3 kbnr for KNO2. The symmetric modes lose intsrkity with increasing pressure, and all modes ,up'ier blue-shifts.

For KNO2 v(NOls shifts much more than V(NO),.

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