Synthesis, Characterization, Absorption and Fastness Properties of Novel Monoazo Dyes Derived from 1-Phenyl-3-amino-4-(2-thiazolilazo)pyrazol-5-one
| Autor: | Fatma Erol |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Absorption spectroscopy
Infrared fastness General Chemistry medicine.disease_cause Tautomer Acetic acid chemistry.chemical_compound tautomerism chemistry hetarylazopyrazolone Elemental analysis medicine Fourier transform infrared spectroscopy Absorption (chemistry) Ultraviolet substituent effect Nuclear chemistry |
| Zdroj: | Journal of the Brazilian Chemical Society v.31 n.9 2020 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ Journal of the Brazilian Chemical Society, Volume: 31, Issue: 9, Pages: 1815-1824, Published: 19 AUG 2020 |
| Popis: | Monosubstitute thiazolyl amines were diazotized in acetic acid, coupled to 1-phenyl-3-aminopyrazol-5-one (1a-1c) and acetylated to obtain the 2a-2c dyes. The dyes were characterized by elemental analysis and spectroscopic (Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR), ultraviolet (UV)) methods. The effects on the visible absorption spectra of the substituents present, solvents, pH, concentration and temperature were investigated in detail. Tautomerism of the dyes were investigated by spectroscopic methods. Fastness properties of dyes were studied using the standard method for the assessment of color fastness of textile. |
| Databáze: | OpenAIRE |
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