8-9th August, 2008 School of Materials Science & Nanotechnology,Jadavpur University
Infrared and Raman Spectra of Nano-Bio molecules: An algebraic approach
Srinivasa Rao Karumuri1*, Nirmal Kumar Sarkar2, Joydeep Choudhury1 and Ramendu Bhattacharjee1
1 Condenser Matter Theory Research Group, Department of Physics, Assam University, Silchar, India
2 Department of Physics, Karimganj College, Karimganj-788710, India.
Corresponding author E-mail: srinivasa_karumuri@rediffmail.com
The spectroscopy is a branch of physics which deals with the interaction of electromagnetic radiation with matter. It is presently going through an exciting time of renewed interest, which is being fueled by the rapid development of sophisticated experimental approaches. Recent developments of powerful lasers to create complex excitations, thus allows one to study the highly excited levels with unprecedented resolution. With one of the new theoretical approach i.e Lie algebraic approach, we have study the vibrational spectra of Metalloporphyrins for both stretching and bending bands. Since vibrational Spectroscopy is one of the most powerful tools to gain insight into the nature of chemical bonds and geometrical structure of molecules, infrared (IR) and Raman spectra of metalloporphyrins. Using U(2) algebraic mode Hamiltonian is
H = E0 + AiCi + 1ni=Σnij〈ΣAij Cij + nij〈Σλij Mij
Where Ai, Aij and λij are the algebraic parameters which varies from molecule to molecule and Ci , Cij and Mij are algebraic operators [1,2,3,4]. The vibrational energy levels are calculated using algebraic mode Hamiltonian and the results compared with the experimental values. The results obtained by this model are in good accuracy with the observed data.
Keywords: Vibrational Spectra, Lie algebra, Metalloporphyrins.
References:
1. Srinivasa Rao Karumuri, Nirmal Kumar Sarkar, Joydeep Choudhury and Ramendu Bhattacharjee, J. Environ. Res & Develop, 2008(In Press).
2. Srinivasa Rao Karumuri, Nirmal Kumar Sarkar, Joydeep Choudhury and Ramendu Bhattacharjee, Mol.Phys, 2008(In Press).
3. Nirmal Kumar Sarkar, Srinivasa Rao Karumuri, Joydeep Choudhury and Ramendu Bhattacharjee, Mol.Phys, 106,693(2008)
4. Joydeep Choudhury, Srinivasa Rao Karumuri, Nirmal Kumar Sarkar and Ramendu Bhattacharjee, Pramana. J. Phys, 2008(In Press).
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