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Raman frequency shifts for the rotatory lattice mode close to the melting point in ammonia solid I
Date
2005-09-08
Author
Karacali, H
Yurtseven, Hasan Hamit
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We correlate here the thermal expansivity alpha(p) to the frequency shifts 1/v(partial derivative v/partial derivative P)(T) for the rotatory lattice (librational) mode in ammonia solid I close to the melting point. This is carried out for the pressures of 0, 1.93, and 3.07 kbar at various temperatures for this solid structure. By obtaining linear plots of alpha(p) versus 1/v(partial derivative v/partial derivative P)(T) for the pressures studied, we extract the values of the slope dP(m)/dT according to our spectroscopic relation. Our calculated values of dP(m)/dT can be compared with the experimental ones for ammonia solid I close to the melting point.
Subject Keywords
Physical and Theoretical Chemistry
,
Materials Chemistry
,
Surfaces, Coatings and Films
URI
https://hdl.handle.net/11511/45694
Journal
JOURNAL OF PHYSICAL CHEMISTRY B
DOI
https://doi.org/10.1021/jp058111d
Collections
Department of Physics, Article