Journal ArticleDOI
Raman study of NH4NO3 and ND4NO3—250–420K
H.C. Tang,B. H. Torrie +1 more
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TLDR
In this paper, the Raman spectra of NH 4 NO 3, and ND 4 NO3, were studied from 250 to 420K and the results showed that there are four phases separated by first order transitions.About:
This article is published in Journal of Physics and Chemistry of Solids.The article was published on 1977-01-01. It has received 61 citations till now.read more
Citations
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Ammonium nitrate: a promising rocket propellant oxidizer
TL;DR: This review is an attempt to consolidate the information available on the various issues pertaining to the use of ammonium nitrate as a solid propellant oxidizer in the area of propellants.
Journal ArticleDOI
Symmetry breaking effects in NO3−: Raman spectra of nitrate salts and ab initio resonance Raman spectra of nitrate–water complexes
TL;DR: In this paper, ground-state structures and vibrational frequencies for complexes of the nitrate anion with one and two water molecules at the ab initio Hartree-Fock level with a basis set including diffuse and polarization functions were calculated.
Journal ArticleDOI
FTIR Characterization of Polymorphic Transformation of Ammonium Nitrate
TL;DR: In this article, the authors examined the relative humidity (RH) affects the transition path and the transition temperatures of NH 4 NO 3 using in-situ microscopic Fourier Transform InfraRed spectroscopy.
Journal ArticleDOI
Inorganic salts in atmospheric particulate matter: Raman spectroscopy as an analytical tool
TL;DR: The chemometric analysis of the spectroscopic data of these 45 salts demonstrates the suitability of Raman spectroscopy to classify and identify sulfate, nitrate and carbonate salts of atmospheric importance.
Journal ArticleDOI
Solid-State Transition Mechanisms of Ammonium Nitrate Phases IV, III, and II Investigated by Simultaneous Raman Spectrometry and Differential Scanning Calorimetry
TL;DR: In this paper, the solid-state transition mechanisms of ammonium nitrate IV, III, and II were studied by measuring samples simultaneously by Raman spectrometry and differential scanning calorimetry.
References
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Journal ArticleDOI
Motions of Molecules in Condensed Systems: I. Selection Rules, Relative Intensities, and Orientation Effects for Raman and Infra‐Red Spectra
TL;DR: In this paper, the distribution of point symmetries within space groups and the population of the unit cell were used to derive selection rules for Raman and infra-red spectra of crystals.
Journal ArticleDOI
On linewidth of phonons associated to a disorder mechanism
P. da R. Andrade,S.P.S. Porto +1 more
TL;DR: In this paper, an expression for the linewidth of phonons associated to a disorder mechanism in crystals is deduced, and a new view point to the application of fluctuation-dissipation theorem for order-disorder crystals is presented.
Journal ArticleDOI
Proton-Phonon Coupling in Cs H 2 As O 4 and K H 2 As O 4
TL;DR: In this article, strong anharmonic coupling between the pseudospin "tunneling" mode and an optical mode was observed in the paraelectric phase of cesium dihydrogen arsenate.
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Molecular rotation in the solid state. the variation of the crystal structure of ammonium nitrate with temperature
Journal ArticleDOI
Infrared spectra and crystalline phase transitions of ammonium nitrate
A. Théorêt,C. Sandorfy +1 more
TL;DR: The infrared spectra of solid crystalline films of ammonium nitrate were measured at temperatures ranging between the melting point (169 °C) and liquid air temperature (−190 °C), and four different spe...
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Infrared spectra and crystalline phase transitions of ammonium nitrate
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