|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(07) [July 2006] >
| Title: | Vibrational spectra and thermodynamic analysis of metformin |
| Authors: | Gunasekaran, S
Natarajan, R K
Renganayaki, V
Natarajan, S |
| Keywords: | Vibrational spectra
Metformin
Vibrational band assignment
Molecular mechanics
Thermodynamic functions |
| Issue Date: | Jul-2006 |
| Publisher: | CSIR |
| IPC Code: | G01J3/28 |
| Abstract: | Metformin is one of the important
anti-diabetic drugs to treat non-insulin dependent diabetes mellitus (NIDDM).
Fourier transform infrared (FTIR) and Fourier transform Raman (FTR) spectra of
metformin have been used for the molecular study. A satisfactory band
assignment has been made on the fundamental modes of vibration. Employing the molecular
mechanics method using MM3 force field, the theoretical vibrational frequencies
and geometry parameters like bond lengths, bond angles etc are calculated and
compared with the experimental frequencies. The observed frequencies are used
to compute the thermodynamic functions, namely, the enthalpy, entropy, heats of
formation, heat capacity using standard expressions at temperature 298 K and
one atmospheric pressure. |
| Page(s): | 495-500 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(07) [July 2006]
|
|
