In 2022,Gutierrez, Mario; Garcia, Eduardo; Monterde, Cristina; Sanchez, Felix; Douhal, Abderrazzak published an article in Physical Chemistry Chemical Physics. The title of the article was 《Modulating the spectroscopy and dynamics of a proton-transfer dye by functionalizing with phenyl groups》.COA of Formula: C8H8O2 The author mentioned the following in the article:
Mols. undergoing excited-state proton transfer (ESPT) reactions are among the most interesting systems from spectroscopic and photophys. viewpoints. These mols. can be further functionalized with electron donating or accepting groups, inducing intramol. charge transfer (ICT) events, which might be coupled to the ESIPT ones, conferring them with different spectroscopic and photophys. properties, which can be essential to implement the related materials in many key scientific and technol. fields. Here, authors report new benzimidazole derivatives that are functionalized with a Ph group, 2-(5,10-diphenyl-1H-phenanthro[9,10-d]imidazol-2-yl)phenol (DP-HPPI), and its methylated equivalent, 2-(2-methoxyphenyl)-5,10-diphenyl-1H-phenanthro[9,10-d]imidazole (DP-MPPI). The results prove that these mols. in solutions undergo an ultrafast ICT (400-700 fs) reaction. Addnl., DP-HPPI also undergoes a reversible ESIPT process in dichloromethane. However, this is precluded in acetonitrile due to the involvement of intermol. H-bonds in this solvent. These results provide key insights into the development of proton-transfer materials with bespoke spectral and photodynamical properties. In the experiment, the researchers used many compounds, for example, 2-Methoxybenzaldehyde(cas: 135-02-4COA of Formula: C8H8O2)
2-Methoxybenzaldehyde(cas: 135-02-4) is used as a flavor agent in foods including nonalcoholic/alcoholic beverages, baked goods, chewing gum, confections, frozen dairy, fruit ices, hard/soft candy, instant coffee, tea, Jams, jellies, and milk products. It also has been used to obtain good enantioselectivities using Cu(OAc)(2)-bis(oxazolines) via hydrogen bonding in asymmetric Henry reaction.COA of Formula: C8H8O2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem