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IJEMS Vol.15(2) [April 2008] >

Title: Dielectric relaxation behaviour of glycine in aqueous solution medium in the microwave frequency region
Authors: Kumar, K Ajaya
Bhaumik, Samiran
Vishwam, T
Subramanian, V
Murthy, V R K
Keywords: Complex permittivity
Relaxation time
Dipole moment
Issue Date: Apr-2008
Publisher: CSIR
Abstract: A study on the dielectric properties of glycine in aqueous solution medium in the microwave frequency region (130 MHz-20 GHz) is carried out using the open-ended coaxial probe technique. Dielectric parameters such as dielectric constant, dielectric loss of various weight percentage levels of glycine in double distilled aqueous medium such as water are determined. It is observed that the real part of dielectric permittivity decreases and imaginary part of the dielectric permittivity increases with increase in the weight percentage level of glycine in water. From these parameters we calculated the relaxation time and its behaviour is analysed. Dipole moment value is calculated from the optimized geometrical structure of the glycine molecule from the AM₁, PM₃, and MNDO ab initio quantum mechanical calculations using the Argus Lab chemical modeling Software 2004.
Page(s): 196-198
ISSN: 0971-4588
Source:IJEMS Vol.15(2) [April 2008]

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