Synthesis of Brooker's merocyanine derivatives and their application as a sensor of hydrogen sulfide

Download
2022-1
Tekir, Şafak
Brooker's merocyanine has some unique features related to its color properties. Its facile synthesis and derivatization broaden the applications in various areas. Since it can be modified with various functional groups, it can be applied as a sensor with necessary recognition modules. In this thesis, Brooker's merocyanine derivatives were designed and 10 different derivatives were synthesized for their application as sensor of hydrogen sulfide. Nitro and azide derivatives were tried to be reduced by hydrogen sulfide. Cell studies of nitro derivative were conducted using two different cell lines. Cyanate derivatives were also synthesized in order to get a turn-on fluorescent sensor for hydrogen sulfide.

Suggestions

Synthesis of azobenzene-containing macrocycles exhibiting unexpected fluorescence
Hosgor, Ege; Akdağ, Akın (2022-03-01)
Polyfunctional macrocycles have been studied extensively for their responsive properties. In this study, three electron- deficient novel azo-containing crown ethers were successfully synthesized. The synthesized macrocycles were characterized and their photophysical along with photoisomerization were studied. The results were compared with their acyclic derivative. It was found that these compounds did not convert to their cis-isomer completely due to the rigidity of the cycles. The fluorescence studies rev...
Production of Calcium Sulfoaluminate Cements with Natural and Waste Materials
Canbek, Oğulcan; Erdoğan, Sinan Turhan (null; 2019-05-02)
Kalsiyum sulfoalüminat çimentoları (KSA) Portland çimentosuna (PÇ) kıyasla yaklaşık 200-250 °C düşük sıcaklıkta üretilebiliyor olmaları sebebiyle ilgi odağı haline gelmiştir. KSA çimentolarının doğal hammaddeleri kalker, boksit ve alçıtaşı iken klinker ana fazları ise ye’elimit, belit, ferrit ve anhidrittir. Bu çimentoların yaygın olarak kullanılamayışının ana sebeplerinden biri ye’elimit’in oluşması için gereken yüksek alümina miktarıdır ve bu ihtiyaç dünyada sınırlı sayıda rezervi bulunan boksitten karşıl...
A new method for hydroxychloroquine detection
Ünal Taş, Dilek; Persil Çetinkol, Özgül; Department of Chemistry (2022-2-09)
Silver nanoparticles (AgNPs) possess unique physicochemical and optical properties. Their localized surface plasmon resonance (LSPR) signal depends on size, shape and composition of the nanoparticles and may change with the intermolecular interactions providing opportunity to design distinct detection platforms for ions, metabolites or drugs. Here, a facile, cost-effective, rapid colorimetric method based on the citrate capped AgNPs (Cit-AgNPs) was developed for hydroxychloroquine (HCQ) detection in aqueous...
Synthesis of triazene-substituted homoconjugated push-pull chromophores by formal [2 + 2] cycloadditions
Erden, Kübra; Dengiz, Çağatay (Elsevier BV, 2019-07-25)
1-(4-Ethynylphenyl)-3,3-dialkyltriaz-1-enes, well-known building blocks for branched dendrimer syntheses, were utilized as a new type of electron-donor component in formal [2 + 2] cycloadditions. The click-type, atom-economic reactions proceed efficiently under ambient conditions without any catalyst. The resulting products are structurally interesting push-pull chromophores and were investigated in the context of optoelectronic properties using UV/Vis spectroscopy, NMR studies, and computational chemistry
Synthesis and structure of systems containing pyramidalized and strained double bond: An investigation on the cycloaddition reactions of cis-and trans-3,8-dicarbomethoxy-3,8-dihydroheptalene
Saracoglu, N; Menzek, A; Balcı, Metin (2001-01-01)
The cycloaddition reactions of cis-3,8-dicarbomethoxy-3,8-dihydroheptalene cis-2 and trans-3,8-dicarbomethoxy-3,8-dihydroheptalene trans-2 with various dienophiles such as dimethyl acetylenedicarboxylate (DMAD), p-benzoquinone. maleic anhydride, tetracyanoethylene, naphtoquinone gave monoaddition products 15-23. Further addition of benzyne and dimethyl acetylenedicarboxylate to 18 resulted in the formation of the compounds syn-25 and syn-26 having pyramidalized double bonds. The addition of benzyne to 21 an...
Citation Formats
Ş. Tekir, “Synthesis of Brooker’s merocyanine derivatives and their application as a sensor of hydrogen sulfide,” M.S. - Master of Science, Middle East Technical University, 2022.