Bushra Tariq's research while affiliated with Government College Women University Faisalabad and other places

Chemical compounds belonging to the quinone class are known for their cyclic diketone structures. Anthraquinone derivatives have been used as sensing materials and dyes or pigments. The spectroscopic and voltammetric sensing capacity of 1-amino-4-hydroxy-9,10-anthraquinone was utilized to sense 2-bromobenzene-sulfonyl chloride, 4-nitrobenzene-sulfonyl chloride, benzoyl chloride, 2-chloro-benzoyl chloride and 4-bromo-benzoyl chloride. These substituted acyl chlorides and nitrobenzene sulfonyl chloride are important intermediates in various reactions, and the product formation is highly dependent on their concentration. Therefore, it is crucial to take special care as all these compounds are carcinogenic. All studies were carried out in ethanol solvent. Results showed that 1-AHAQ could be effectively used as a UV–visible sensor for sensing 2-bromo benzene sulfonyl chloride. 1-AHAQ demonstrates good results as a fluorescence sensor for sensing 4-bromobenzene-sulfonyl chloride and behaves as a good voltammetric sensor for sensing 4-nitrobenzene sulfonyl chloride.

Chemical compounds belonging to the quinone class are known for their cyclic diketone structures. Anthraquinone derivatives have been used as sensing materials and dyes or pigments. The spectroscopic and voltammetric sensing capacity of 1-amino-4-hydroxy-9,10-anthraquinone was utilised to sense 2-bromobenzene-sulfonyl chloride, 4-nitrobenzene-sulfonyl chloride, benzoyl chloride, 2-chlorobenzoyl chloride, and 4-bromobenzoyl chloride. These substituted acyl chlorides and nitrobenzene-sulfonyl chloride are important intermediates in various reactions, and the product formation is highly dependent on their concentration. Therefore, it is crucial to take special care as all these compounds are carcinogenic. All studies were carried out in ethanol solvent. Results showed that 1-AHAQ could be effectively used as a UV–visible sensor for sensing 2-bromobenzene-sulfonyl chloride. 1-AHAQ demonstrates good results as a fluorescence sensor for sensing 4-bromobenzene-sulfonyl chloride and behaves as a good voltammetric sensor for sensing 4-nitrobenzene-sulfonyl chloride.

Anthraquinones constitute an important class of compounds with wide applications. The solubility of derivatives at 298.15 K was discussed in ethanol–water solution and at atmospheric pressure, the solubility of 1-amino-4-hydroxy-9,10-anthraquinone (AHAQ) in binary solvents (ethanol–water combinations) was determined. Colour strength and fastening properties depend upon the kind and position of a hydrophobic group connected to the phenoxy ring of Anthraquinone moiety. There is a continuing interest in the creation of novel anthraquinone derivatives with biological activities since they have demonstrated potential for treating multiple sclerosis. For this purpose, by utilizing voltammetric and absorption studies, interactions of various derivatives with calf thymus DNA (ct-DNA) and the cationic surfactant cetyltrimethylammoniumbromide (CTAB) were examined. Here prominent Hydrophobic interaction and electron transfer resulting in binding to CTAB micelles were observed. The polarity index of the media was assessed and associated with the electrochemical parameters. The medicinal behaviour of Anthraquinone derivatives was a result of electron transfer reactions with DNA. UV–Visible and fluorescence properties were due to the transitions between n* and π* orbitals. Large absorption band with low dichroic ratio was characteristic of various derivatives of Anthraquinone. Presence of –NH group proves various derivatives remarkable calorimetric and anionic sensors. Graphical Abstract