3234-35-3Relevant academic research and scientific papers
Development of a colorimetric and fluorescent Cu2+ ion probe based on 2′-hydroxy-2,4-diaminoazobenzene and its application in real water sample and living cells
Dawei, Lou,Fei, Li,Hong, Ren,Li, Jin,Ping, Wu,Shihua, Yu
, (2020)
2′-Hydroxy-2,4-diaminoazobenzene (L1-OH), a fluorescence probe bearing ortho hydroxyl and amino group for the detection of Cu2+ ion was synthesized through diazo coupling reaction. The visible color change of L1-OH from yellow to pink was attri
Detection of environmental pollutants heavy metal ions based on the complexation with fluorescent dyes: Reaction of 2-(2?-hydroxyphenyl)-5-amino-benzotriazole with the Sn2+, Hg2+, and Pb2+ ions
Adam, Abdel Majid A.,Altalhi, Tariq A.,Althobaiti, R. A.,El-Megharbel, Samy M.,Grabchev, Ivo,Refat, Moamen S.,Saad, Hosam A.
, (2021)
Providing a clean environment free of pollutants, toxic substances, and hazardous materials is a pressing worldwide concern. Fluorescent dyes are a promising means to achieve this goal, and their application extends to medicine, academia, and industry. This work aims to provide basic data on a dye that can be used for the detection, quantification, and extraction of heavy metal ions based on its complexation with these environmental pollutants. A hydroxyphenylbenzotriazole derivative, 2-(2?-hydroxyphenyl)-5-amino-benzotriazole (LH), was synthesized, characterized, and chelated with Sn2+, Hg2+, and Pb2+ metal ions. The synthesized LH dye and its metal complexes were characterized using a range of physicochemical and spectroscopic techniques. Binding the dye to the investigated metal ions resulted in colored complexes with 1:2 (metal: dye) stoichiometry and the general composition of [ML2]·xH2O. Larger spectral shifts were observed in the absorption and emission spectra of dye molecule after complexation with the Sn2+ ion compared with the other two metal ions.
Synthesis and properties of multifunctional nitroxyl radical hindered-amine light stabilizers
Zhang, Wen,Liu, Dong,Hua, Chengwen,Zhao, Junlong,Chen, Bang,Gou, Xiaofeng
, p. 77 - 81 (2015/04/27)
A series of novel nitroxyl radical hindered-amine light stabilizer monomers were designed and synthesized from 2,2,6,6-tetramethylpiperidine-N-oxyl-4-ol, cyanuric chloride, allylamine, and 2-hydroxyphenylbenzotriazole derivatives. Structures of the new stabilizers were confirmed by 1H NMR, 13C NMR, FT-IR, ESI-HRMS, and element analysis. The synthesized compounds 5a-f were evaluated for their antioxidant and antiaging properties, and a significant stabilizing effect against photodegradation was found.
Synthesis and properties of multifunctional hindered amine light stabilizers
Gou, Xiaofeng,Liu, Dong,Hua, Chengwen,Zhao, Junlong,Zhang, Wen
, p. 15 - 20 (2014/04/03)
A series of multifunctional hindered amine light stabilizers (HALSs) for monomers were designed and synthesized from cyanuric chloride, allylamine, 2,2,6,6-tetramethylpiperidine-4-ol or 1,2,2,6,6-pentamethylpiperidine-4-ol, and 2-(2-hydroxyphenyl)-1,2,3-b
