Solvent effect on coumarin dye Calculation of ground and excited state dipole moments

Main Authors: Rajeev, Sonam, Mudassir M. Husain
Format: Article
Bahasa: eng
Terbitan: , 2011
Subjects:
Online Access: https://zenodo.org/record/5790618
Daftar Isi:
  • Physics Section, Department of Applied Sciences & Humanities, Faculty of Engineering & Technology, Jamia Millia Islamia (a Central University), New Delhi-110 025, India E-mail : mmudassirh@rediffmail.com Fax : 91-11-26988816 sardar Vallabbhai National Institute of Technology (SVNIT), Surat, Gujarat, India Manuscript received 31 August 2010, revised 02 March 2011, accepted 17 March 2011 Absorption and fluorescence spectra of 7-diethylamino-4-methyl coumarin in polar and non-polar solvents have been studied. The excited state dipole moment (μe) has been found to be more than the ground state dipole moment (μg). These values have been compared with the computed value by using ab initio method at 6-31G* level and are in good agreement with the experimental result.