Pyrene-containing dyes: Reversible click/declick reaction, optical and aggregation behaviors was written by Peng, Mengde;Wang, Ying;Zhang, Xin. And the article was included in Dyes and Pigments in 2020.Formula: C5H12O3 This article mentions the following:
Pyrene-based dyes were synthesized by a clean, efficient Diels-Alder [4 + 2] click reaction where no catalyst adding or side reactions occurring. The optical behaviors, optoelectronic properties and supramol. donor/acceptor dipolar interactions of these new dyes were investigated by UV-vis absorption, fluorescence spectroscopy, electrostatic potential and frontier MO calculations as well as electrochem. cyclic voltammetry measurements. Two pyrene-based dyes can be mutually transformed by reversible formation or cleavage of Diels-Alder covalent bonds through click/declick reaction. During the reversible reaction, switchable fluorescence on/off behaviors were interestingly observed X-ray single crystal diffraction revealed that supramol. donor/acceptor dipolar and π-π stacking interactions work cooperatively to form stronger interaction and the shorter distance (3.38 Å) between donor and acceptor than general π-π stacking distance (3.54 Å). An amphiphilic dye is self-assembled in water into blue fluorescent, hollow vesicular aggregates with the average diameter of 115-120 nm and a narrow size distribution as revealed by dynamic light scattering, SEM and transmission electron microscopy. In the experiment, the researchers used many compounds, for example, 2-(2-Methoxyethoxy)ethanol (cas: 111-77-3Formula: C5H12O3).
2-(2-Methoxyethoxy)ethanol (cas: 111-77-3) 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.Formula: C5H12O3
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem