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Study of structural phase transition in NH4SCN from Raman scattering

โœ Scribed by G.D. Tewari; G.S. Raghuvanshi; D.P. Khandelwal; H.D. Bist

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
278 KB
Volume
103
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The temperature dependence of the C=N Raman stretching mode of NHaSCN IS presented. Two bands at 2063 and 2072 cm-r give place to a smgle band at 2044 cm-' within <lยฐC a1 =86_5OC v&h rising temperature; the reverse change occurring at u78JDC with falling temperature. The observed changes in the spectrum at the transibon suggest a fist-order structural phase transition and disordering of Ihe thiocyanate ion in the high-temperature phase.

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