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http://nopr.niscpr.res.in/handle/123456789/25346| Title: | Absorption, excitation and emission spectra of direct yellow 8 in aqueous solutions |
| Authors: | Jaiswal, R M P Singh, N Jaggi, Neena Gir, Manoj |
| Issue Date: | Feb-2002 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The absorption, excitation and emission spectra of direct yellow 8 [C24H 19N4NaO5S2] have been recorded in aqueous solutions of concentrations between10-4 and 10-6Ml-1 .This has led to the determination of optimum concentrations for the absorption and emission spectra of the compound. Three absorption peaks at λ ~ 395, 287 and 226 nm at the concentration 10-5 Ml-1 have been observed and assigned to 1W←1A (π*← n), 1Lb ← 1A (secondary π*←π) and 1La ←1A (primary π*←π) transitions respectively. Emission spectra of the compound have shown fluorescence at 572, 442 and 345 nm. |
| Page(s): | 89-94 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Appears in Collections: | IJPAP Vol.40(02) [February 2002] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJPAP 40(2) 89-94.pdf | 898.3 kB | Adobe PDF | View/Open |
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