Structure and Spectroscopic Studies of Bis Azo Compounds with S/SO2 Bridges and Containing Cyclic-1,3-Dicarbonyl Groups

Gülnihal Erten; Naki Çolak

Makale detayları

Structure and Spectroscopic Studies of Bis Azo Compounds with S/SO2 Bridges and Containing Cyclic-1,3-Dicarbonyl Groups

Yazarlar:

Gülnihal Erten | Naki Çolak

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji Vol.11 Issue 3, pp.727-734

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001299407

pISSN:

2147-9526

Anahtar kelimeler:

Özet:

 A series of new bis azo dyes were synthesized starting from aromatic diamine with SSO2 bridges and cyclic-1,3-dicarbonyl groups; contain active methylene group, namely; 3,3-dimethyl-1,5-cyclohexadione dimedone, 1,3-cyclohexadione and 2,2-dimethyl-1,3-dioxane-4,6-dione to give 1-6. Whether the reaction is complete and the purity of the compounds were checked with TLC. The structure of the newly synthezed compounds was investigated by using, FT-IR, 1HNMR, LCMSMS and UVVisible spectrophotometric methods, CH3OH was used in the LC-MSMS experiments, and the molecular masses of the compounds were seen as M and M1 protonated in the spectrum. In the UV-Vis spectra of these compounds, the solvent effect by using different solvents and also the acid-base effect by adding HCl or KOH to the medium were investigated. The tautomeric equilibrium forms enol-imine O-H.N, keto-amine O.H-N forms of the compounds were investigated according to the electronic spectrum recorded in chloroform, dimethylformamide DMF, acetic acid, and methanol solvents. The results of the UV-visible and 1H-NMR spectra indicated that the compounds in chloroform, dimethylformamide DMF, acetic acid and methanol were found in the hydrazo tautomer keto-amine O.H-N forms of the proposed tautomeric forms.

 A series of new bis azo dyes were synthesized starting from aromatic diamine with SSO2 bridges and cyclic-1,3-dicarbonyl groups; contain active methylene group, namely; 3,3-dimethyl-1,5-cyclohexadione dimedone, 1,3-cyclohexadione and 2,2-dimethyl-1,3-dioxane-4,6-dione to give 1-6. Whether the reaction is complete and the purity of the compounds were checked with TLC. The structure of the newly synthezed compounds was investigated by using, FT-IR, 1HNMR, LCMSMS and UVVisible spectrophotometric methods, CH3OH was used in the LC-MSMS experiments, and the molecular masses of the compounds were seen as M and M1 protonated in the spectrum. In the UV-Vis spectra of these compounds, the solvent effect by using different solvents and also the acid-base effect by adding HCl or KOH to the medium were investigated. The tautomeric equilibrium forms enol-imine O-H.N, keto-amine O.H-N forms of the compounds were investigated according to the electronic spectrum recorded in chloroform, dimethylformamide DMF, acetic acid, and methanol solvents. The results of the UV-visible and 1H-NMR spectra indicated that the compounds in chloroform, dimethylformamide DMF, acetic acid and methanol were found in the hydrazo tautomer keto-amine O.H-N forms of the proposed tautomeric forms.

 A series of new bis azo dyes were synthesized starting from aromatic diamine with SSO2 bridges and cyclic-1,3-dicarbonyl groups; contain active methylene group, namely; 3,3-dimethyl-1,5-cyclohexadione dimedone, 1,3-cyclohexadione and 2,2-dimethyl-1,3-dioxane-4,6-dione to give 1-6. Whether the reaction is complete and the purity of the compounds were checked with TLC. The structure of the newly synthezed compounds was investigated by using, FT-IR, 1HNMR, LCMSMS and UVVisible spectrophotometric methods, CH3OH was used in the LC-MSMS experiments, and the molecular masses of the compounds were seen as M and M1 protonated in the spectrum. In the UV-Vis spectra of these compounds, the solvent effect by using different solvents and also the acid-base effect by adding HCl or KOH to the medium were investigated. The tautomeric equilibrium forms enol-imine O-H.N, keto-amine O.H-N forms of the compounds were investigated according to the electronic spectrum recorded in chloroform, dimethylformamide DMF, acetic acid, and methanol solvents. The results of the UV-visible and 1H-NMR spectra indicated that the compounds in chloroform, dimethylformamide DMF, acetic acid and methanol were found in the hydrazo tautomer keto-amine O.H-N forms of the proposed tautomeric forms.

 A series of new bis azo dyes were synthesized starting from aromatic diamine with SSO2 bridges and cyclic-1,3-dicarbonyl groups; contain active methylene group, namely; 3,3-dimethyl-1,5-cyclohexadione dimedone, 1,3-cyclohexadione and 2,2-dimethyl-1,3-dioxane-4,6-dione to give 1-6. Whether the reaction is complete and the purity of the compounds were checked with TLC. The structure of the newly synthezed compounds was investigated by using, FT-IR, 1HNMR, LCMSMS and UVVisible spectrophotometric methods, CH3OH was used in the LC-MSMS experiments, and the molecular masses of the compounds were seen as M and M1 protonated in the spectrum. In the UV-Vis spectra of these compounds, the solvent effect by using different solvents and also the acid-base effect by adding HCl or KOH to the medium were investigated. The tautomeric equilibrium forms enol-imine O-H.N, keto-amine O.H-N forms of the compounds were investigated according to the electronic spectrum recorded in chloroform, dimethylformamide DMF, acetic acid, and methanol solvents. The results of the UV-visible and 1H-NMR spectra indicated that the compounds in chloroform, dimethylformamide DMF, acetic acid and methanol were found in the hydrazo tautomer keto-amine O.H-N forms of the proposed tautomeric forms.

Makale detayları

Structure and Spectroscopic Studies of Bis Azo Compounds with S/SO2 Bridges and Containing Cyclic-1,3-Dicarbonyl Groups

Yazarlar:

Gülnihal Erten | Naki Çolak

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji Vol.11 Issue 3, pp.727-734

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001299407

pISSN:

2147-9526

Bis azo dyes

spectroscopic studies

dimedone

tautomerism

Sayı

Makale detayları

Structure and Spectroscopic Studies of Bis Azo Compounds with S/SO2 Bridges and Containing Cyclic-1,3-Dicarbonyl Groups

Yazarlar: Gülnihal Erten | Naki Çolak

Yayıncı: Gazi University

Ana Başlıklar: Mühendislik

Dergi: Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji Vol.11 Issue 3, pp.727-734

Belge Tipi: Makale

Yayın Tarihi: 9/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001299407

pISSN: 2147-9526

Bis azo dyes

spectroscopic studies

dimedone

tautomerism

Sayı

Yazarlar:

Gülnihal Erten | Naki Çolak

Yayıncı:

Gazi University

Ana Başlıklar:

Mühendislik

Dergi:

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji Vol.11 Issue 3, pp.727-734

Belge Tipi:

Makale

Yayın Tarihi:

9/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001299407

pISSN:

2147-9526