Novel bisazo dyes with Schiff bases: Synthesis, characterization, dyeing of polyester fabric, antimicrobial activity, and DFT studies

IF 4 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Structure Pub Date : 2025-03-23 DOI:10.1016/j.molstruc.2025.142075

Ola A. Abu Ali , Hossa F. Al Shareef , Rasha Felaly , Ali A. Ali , M.M. Elsawy , Amany Belal , Reem I Alsantali , Ahmed B.M. Mehany , S.M. Al-Shomar , N.S. Abdelshafi , Walid E. Elgammal

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Abstract

The study's primary objective was to create novel bis-azo-disperse dyes bearing Schiff bases based on a sulfonamide-pyridine group using a traditional azo coupling reaction. The dye structures were identified through infrared, ¹H/¹³C NMR analysis, and mass spectroscopy. The main goal of the study was to optimize dyeing, factors, including pH, temperature, time, and shade, to understand how disperse dyes 12–14 behave when dyeing polyester fabrics. Raising the dyeing temperature from low to high (90 °C to 130 °C) increased color strength (K/S) values in polyester fabrics treated with the produced dispersion dyes. The produced azo dyes were applied to polyester fabrics at a depth of 2 % using high-temperature pressure in water, with Kimi-levelling PS acting as a leveling and dispersion agent. The colored polyester samples exhibited different shades ranging from beige to yellowish brown to dark brown, depending on the coupler moieties. Additionally, the effect of substituents on the colorimetric colors (CILAB) and color strength (K/S) measurements of dyed polyester fabrics was investigated. Moreover, the use of these dyes protects bacteria in the environment, where dyes demonstrate high effectiveness as antibacterial agents against certain types of bacteria. DFT parameters associated with experimental data.

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.