Vibrational Spectra of Crystalline Ammonium Nitrate

Carrick M.T. and James D.W. (1985) Vibrational Spectra of Crystalline Ammonium Nitrate. Australian Journal of Chemistry, 39 5: 771-781. doi:10.1071/CH9860771


Author Carrick M.T.
James D.W.
Title Vibrational Spectra of Crystalline Ammonium Nitrate
Journal name Australian Journal of Chemistry   Check publisher's open access policy
ISSN 1445-0038
Publication date 1985-01-01
Sub-type Article (original research)
DOI 10.1071/CH9860771
Open Access Status Not yet assessed
Volume 39
Issue 5
Start page 771
End page 781
Total pages 11
Subject 1600 Chemistry
Abstract The low-temperature Raman spectra of NH4NO3 and ND4NO3 give evidence of one phase (phase V) with the phase transition from phase IV being sluggish and occuring over a temperature range of some 100 K with pronounced hysteresis. The spectra were consistent with the reported powder structure of P42. The internal vibrations of the nitrate ion showed both site and factor group components while the internal motions of the ammonium ion showed evidence of two different coulombic sites with a small site splitting evident for both sites. In the higher temperature phase some evidence relating to heteroionic coupling of Ag site components in phase IV is presented and the site splitting of internal nitrate bands in CsCl type structures of phases V, IV, II and I is discussed.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 30 Aug 2016, 12:26:32 EST by System User