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A comparative dielectric relaxation study between hydrogen-and non-hydrogen-bonded liquids: Nitriles vs alcohols
S N Helambe M P Lokhande A C Kumbharkhane S C Mehrotra
Volume 45 Issue 1 July 1995 pp 19-24
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https://www.ias.ac.in/article/fulltext/pram/045/01/0019-0024 -
Keywords
N-nitriles ;dipoles ;relaxation times-microwaves ;dielectrics -
Abstract
Dielectric properties of nitriles have been studied using time domain reflectometry in the frequency range of 10 MHz to 10 GHz over the temperature range of 0°C to 45°C. The calculated dielectric relaxation parameters are compared with values for the corresponding n-alcohols. The dielectric behaviour in n-nitrile systems is quite different from the corresponding behaviour in n-alcohols. The dipoles in n-nitrile systems show a tendency to remain antiparallel, unlike in alcohol systems. The activation energy decreases with the increase of molecular size, whereas in hydrogen bonded liquid it increases.
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Author Affiliations
S N Helambe1 M P Lokhande1 A C Kumbharkhane1 S C Mehrotra1
- Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad - 431 004, India
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Dates
- Published
- July 1995
- Manuscript received
- 2 March 1995
- Manuscript revised
- 22 May 1995
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Pramana – Journal of Physics
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