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<strong>Solvent effects on the dipole moments and photo physical properties of laser dye</strong>

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Title Statement <strong>Solvent effects on the dipole moments and photo physical properties of laser dye</strong>
 
Added Entry - Uncontrolled Name PATIL, N R; B.V.B. COLLEGE OF ENGG. & TECH., VIDYANAGAR, HUBLI
Melavanki, R M ; Department of Physics, M S Ramaiah Institute of Technology, Bangalore 560 054, India
Muttannavar, V T ; Department of Physics, J S S Science RSH P U College, Vidyagiri Dharwad 580 004,India
Vaijayanthimala, S ; Department of Physics, M S Ramaiah Institute of Technology, Bangalore 560 054, India
Naik, L R ; Department of Physics, Karnatak Univesity, Dharwad 580 003, India
Kadadevarmath, J S ; Department of Physics, Karnatak Univesity, Dharwad 580 003, India
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Uncontrolled Index Term Atomic and molecular Physics
Solvatochromic  shift  method; ground  state  and  excited  state  dipole  moments;  laser dye and DFT
 
Summary, etc. The absorption and emission spectra of fluorescent laser dye namely, 4,4”’-bis-2-butyyloctyl-oxy)-P-quaterphenyl have been recorded at room temperature in solvents of different polarities. The exited state dipole moments (µ<sub>e</sub>) have been estimated from Lippert’s, Bakhshiev’s and Kawski-Chamma-Viallet’s equations using the variation of Stoke’s shift with the solvent dielectric constant and refractive index. The geometry of the molecule has been fully optimized and the µ<sub>g</sub> has also been calculated theoretically by Gaussian 03 software using B3LYP/6-31g* level of theory. The µ<sub>g</sub> and µ<sub>e</sub> have been calculated by means of solvatochromic shift method. It has been observed that µ<sub>e</sub> is higher than µ<sub>g</sub>, indicating a substantial redistribution of the π-electron densities in a more polar excited state for the selected laser dye. Further, the changes in the dipole moment (<img src="http://www.niscair.res.in/jinfo/delta.gif" border="0" alt="" />µ) has been calculated both from solvatochromic shift method and microscopic empirical solvent polarity parameter (<em>E</em><img src="http://www.niscair.res.in/jinfo/nt.gif" border="0" alt="" />) and values are compared.  <br />
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2018-10-22 14:42:19
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/19853
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 56, ##issue.no## 10 (2018): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/19853/60722
 
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