Studies on UV/Vis absorption spectra of azo dyes.: Part 26.electronic absorption spectra of 4,4'-diaminoazobenzenes
✍ Scribed by Heinz Mustroph
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 418 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0143-7208
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## Abstract A number of 2‐ and 3‐methoxy‐substituted‐4‐N.N‐diethylaminoazobenzenes have been prepared and their absorption maxima in ethanol and toluene compared with the corresponding 4‐N.N‐diethylaminoazobenzenes. Both the 2‐ and 3‐methoxy groups cause a bathochromic shift, but the bathochromic s