PHOTO PHYSICAL PROPERTIES OF TWO COUMARIN DERIVATIVES USING SOLVATOCHROMIC SHIFT METHOD

Life Science-Spectroscopy

Authors

  • D. NAGARAJA Department of Physics, Bangalore Institute of Technology, Bangalore- 560004, Karnataka, India
  • N.R. PATIL Department of Physics, B.V.B. College of Engineering and Tech, Hubli-580031, Karnataka, India
  • RAVIRAJ .A.KUSANUR Department of Chemistry, R.V. College of Engineering, Bangalore-560059, Karnataka, India
  • H.D. PATIL Department of Physics, Basaveshwar Science College, Bagalkot-587101, Karnataka, India
  • R. M. MELAVANKI Department of Physics, M.S. Ramaiah Institute of Technology, Bangalore- 560054, Karnataka, India

Keywords:

Coumarin derivatives, Solvatochromic shift method, Ground state, excited state dipole moments, DFT studies

Abstract

The ground state (µg) and excited state (µe) dipole moments of two coumarin derivatives namely MDTC and BDTC were estimated in various solvents. The dipole moments were estimated from Lippert, Bakhshiev and Kawaski-Chamma-Viallet equations by using the variation of stokes shift with the solvent dielectric constant and refractive index. Ground state dipole moments were also calculated theoretically by DFT studies using Gaussian 03 software. It was observed that the excited state dipole moments calculated by solvatochromic shift method were greater than the ground state dipole moments indicating a substantial redistribution of the πelectron densities in a more polar excited state for both the coumarin derivatives.

Published

2013-03-31

How to Cite

D. NAGARAJA, N.R. PATIL, .A.KUSANUR, R., H.D. PATIL, & R. M. MELAVANKI. (2013). PHOTO PHYSICAL PROPERTIES OF TWO COUMARIN DERIVATIVES USING SOLVATOCHROMIC SHIFT METHOD: Life Science-Spectroscopy. International Journal of Life Science and Pharma Research, 3(1), L54-L64. Retrieved from https://www.ijlpr.com/index.php/journal/article/view/317

Issue

Volume 3 Issue 1, January - March 2013

Section

Research Articles

Copyright (c) 2022 D. NAGARAJA, N.R. PATIL, RAVIRAJ .A.KUSANUR, H.D. PATIL, R. M. MELAVANKI

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.