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http://nopr.niscpr.res.in/handle/123456789/33114| Title: | Spectral Behaviour and Solvent Effects of Some Amino-Anthraquinone Dyes |
| Authors: | Etaiw, Safaa H Abou-Sekkina, Morsi M El-Hefnawey, Gad B Assar, Samy S |
| Issue Date: | Mar-1982 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The electronic absorption spectra of various aminoanthraquinone dyes in ethanol comprise five bands in the UV region and one in the visible region (450-560 nm). The band in the visible region has been assigned to CT of the type p - a transitions which result from the interaction of the lone pair of the nitrogen atom with the phenyl ring attached to the carbonyl group. The CT nature of the band has been supported theoretically as well as by the effect of solvent on band position. ET and Z-values have been found to correlate well with λmax of the CT band. The acid dissociation constants of dyes containing hydroxy, carboxy or sulphonic groups have also been determined. |
| Page(s): | 24-29 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.07(1) [March 1982] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 7(1) 24-29.pdf | 1.28 MB | Adobe PDF | View/Open |
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