Synthesis and luminescence properties of pyrazolone derivatives and their terbium complexes was written by Xiao, Haihua;Jiang, Xi;Li, Dong;Wu, Limin;Zhang, Wu;Guo, Dongcai. And the article was included in Luminescence in 2015.Category: ethers-buliding-blocks This article mentions the following:
Seven novel pyrazolone derivatives were synthesized and characterized by 1H NMR and 13C NMR spectra, mass spectra, IR spectra and elemental anal. Their Tb complexes were prepared and characterized by elemental anal., EDTA titrimetric anal., UV/visible spectra, IR spectra and molar conductivity, as well as thermal anal. The fluorescence properties and fluorescence quantum yields of the complexes were studied at room temperature Pyrazolone derivatives had good energy-transfer efficiency for the Tb ion. All the Tb complexes emitted green fluorescence characteristic of Tb ions, possessed strong fluorescence intensity, and showed relatively high fluorescence quantum yields. Cyclic voltammograms of the Tb complexes were studied and the HOMO and lowest occupied MO (LUMO) energy levels of these complexes were estimated Copyright © 2014 John Wiley and Sons, Ltd. In the experiment, the researchers used many compounds, for example, 2-(4-Methoxyphenoxy)acetic acid (cas: 1877-75-4Category: ethers-buliding-blocks).
2-(4-Methoxyphenoxy)acetic acid (cas: 1877-75-4) belongs to ethers. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Category: ethers-buliding-blocks
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem