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DC Field | Value | Language |
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dc.contributor.author | Bagdatli, Emine | - |
dc.contributor.author | Yaman, Derya | - |
dc.date.accessioned | 2022-08-17T06:52:15Z | - |
dc.date.available | 2022-08-17T06:52:15Z | - |
dc.date.issued | 2020 | - |
dc.identifier.uri | http://doi.org/10.1007/s10895-019-02469-y | - |
dc.identifier.uri | http://earsiv.odu.edu.tr:8080/xmlui/handle/11489/2609 | - |
dc.description.abstract | New 5-pyrazolone based azo- dyes (2-5) and a bisazo- dye (6) were synthesized via diazo- coupling reaction with substituted aryl amines. All azo-5-pyrazolone compounds were characterized with the aid of FTIR, UV-Vis., H-1 NMR, C-13 NMR-APT and, GC-MS or ESI(+)-MS spectroscopic techniques. NMR studies showed that all azo- and bisazo- compounds, are in hydrazo-keto form except compound 5 which is in enol-azo form in solution. FTIR(ATR) studies indicated that compounds 2 and 4 are in azo-keto form, compounds 3 and 6 are in hydrazo-keto form and compound 5 is in enol-azo form in the solid state. All newly synthesized compounds were investigated for their absorption and emission characteristics. Photophysical properties of the solvent polarity effect and acid/base effect on the absorption and emission spectra were evaluated for an azo- (2) and a bisazo- compound (6). All azo-5-pyrazolone compounds showed fluorescence properties and the solvents with different polarities gave rise to shifts in the absorption and emission spectra of 2 and 6. The base addition did not affect the emission spectra while changing the absorption properties of the azo- and bisazo- compounds. Thermal work of 2 and 6 were carried out with TG/DTG technique and the results showed that compound 2 had adequate stability for industrial applications as a fluorescent material. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | SPRINGER/PLENUM PUBLISHERS, 233 SPRING ST, NEW YORK, NY 10013 USA | en_US |
dc.relation.isversionof | 10.1007/s10895-019-02469-y | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Pyrazolone; Azo; pyrazolone; Bisazo; pyrazolone; Photophysical properties; Thermal analysis | en_US |
dc.subject | THIN-FILMS; DYES; FLUORESCENCE | en_US |
dc.title | Photophysical Properties of New Pyrazolone Based Azo- Compounds | en_US |
dc.type | article | en_US |
dc.relation.journal | JOURNAL OF FLUORESCENCE | en_US |
dc.contributor.department | Ordu Üniversitesi | en_US |
dc.contributor.authorID | 0000-0001-5946-2988 | en_US |
dc.identifier.volume | 30 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.startpage | 51 | en_US |
dc.identifier.endpage | 61 | en_US |
Appears in Collections: | Kimya |
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