Browsing by Author "BALCI, BURCU"
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thesis.listelement.badge SYNTHESIS OF CHEMILUMINESCENT COMPOUNDS AND THEIR USAGE IN METAL ION RECOGNITION AND BLOOD DETECTION(2022-06-13) BALCI, BURCU; Cihaner, AtillaLuminescent compounds have gained great importance recently due to their wide application areas. In addition, chemiluminescent compounds have been used for many studies in analytical chemistry due to their high luminescence sensitivity. In this thesis, a new series of chemiluminescent compounds, namely 5,8-di(furan-2-yl)-2,3- dihydrophthalazine-1,4-dione (F2B-Lum), 5,8-di(selenophene-2-yl)-2,3- dihydrophthalazine-1,4-dione (S2B-Lum) and 5,7-di(selenophen-2-yl)-2,3- dihydrothieno[3,4-d] pyridazine-1,4-dione (S2T-Lum), was synthesized via electron donor-acceptor-donor approach. Their structures were confirmed by using NMR, FTIR and HRMS techniques. Then, the chemiluminescence reactions of compounds with hydrogen peroxide in an alkaline solution (0.1 M NaOH(aq)) in the presence of different metal ions, hemin and blood samples were investigated and the results were compared with luminol. As expected, the compounds were sensitive to copper(II), iron(III) ions and blood. It can be easily concluded that the corresponding compounds as new derivatives of luminol are potential candidates for the detection of blood findings in forensic science. In addition, the sensitivity of the compounds to copper(II) ion makes them usable for copper ion recognition in analytical applications. Furthermore, cyclic voltammetry technique was used to investigate the redox behaviors of the compounds and they exhibited irreversible oxidation peaks. Also, reactive oxygen species can be detected by using these compounds via square wave potential method by applying an external potential of -1.05 V. Finally, among the compounds, S2T-Lum was successfully polymerized electrochemically. The corresponding polymer PS2T-Lum can be a precious member of luminol type polymers since it is electroactive and bears chemiluminescent active appendages in its polymeric structure.