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4867059 
Journal Article 
Studies on dielectric properties of cyclohexylamine in non-polar solvents-Kirkwood correlation factor, molar polarization and excess free energy 
Gupta, KK; Bansal, AK; Singh, PJ; Sharma, KS 
2003 
Yes 
Indian Journal of Pure and Applied Physics
ISSN: 0019-5596 
41 
10 
801-805 
English 
WOS:000186111200008 
The study of the dielectric properties of binary mixture of cyclohexylamine (CHA) in non-polar solvents such as benzene, n-heptane and 1,4-dioxane has been investigated. The low frequency molecular dynamics of CHA molecule have been studied by evaluating the Kirkwood correlation factor (g), molar polarization (p(2)) excess correlation factor (deltag) and excess free energy (DeltaG(II)). The observed values of g significantly deviated from unity, which confirm the inter-molecular association in CHA molecule in dilute solutions. The presence of alpha- and beta-multimers in the above system was identified. CHA establishes H-bonding with oxygen of 1,4-dioxane resulting in reinforcement of inter-molecular association and causes higher values of g as compared to benzene and n-heptane. The high frequency molecular dynamics were examined using 8.93 GHz, which reveals that a single relaxation process exists in CHA. These parameters have been used to throw light on the dynamic characteristics of molecular association in these binary mixtures of polar-non-polar liquids. 
dielectric properties; non-polar solvents; Kirkwood correlation factor; molar polarization; excess free energy