NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(09) [September 2006] >

Title: Vibrational spectra and thermodynamics of biomolecule: 5-chlorocytosine
Authors: Rastogi, V K
Palafox, M A
Lang, Kamil
Singhal, S K
Soni, R K
Sharma, Rekha
Keywords: Vibrational spectra
Laser Raman spectra
Issue Date: Sep-2006
Publisher: CSIR
IPC CodeG01J3/28
Abstract: The laser Raman and IR spectra of biomolecule 5-chlorocytosine have been recorded in solid phase. The vibrational spectra have been analysed assuming planar geometry and Cs point group symmetry for the molecule and observed fundamentals have been assigned to different normal modes of vibrations. The studies indicate that the features that are characteristic of the vibrational spectra of cytosine and its derivatives are retained by the spectrum of 5-chlorocytosine and it exists in amino-oxo form in solid phase. The validity of empirical relation νs = 345.5 + 0.876 νasym suggests the equivalence of the two NH bonds of the NH2 group. The observed fundamental frequencies are used to calculate the thermodynamic functions, namely, the enthalpy, entropy, heat capacity and the free energy were also computed in the temperature range 200-1000K using the rigid-rotor harmonic oscillator approximation. For this purpose, the fundamental wavenumbers obtained in the present study were taken, while the structural parameters were taken from literature.
Page(s): 653-660
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.44(09) [September 2006]

Files in This Item:

File Description SizeFormat
IJPAP 44(9) 653-660.pdf247.24 kBAdobe PDFView/Open
 Current Page Visits: 116 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 163437 since 01-Sep-2015  Last updated on 21-Jun-2016Webmaster: