Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 14187-32-7, Name is Dibenzo-18-crown-6, Quality Control of: Dibenzo-18-crown-6.
The Influence of Crown Ethers on Cation Migration Processes. Part 4. Some Simple Benzoquinone Radical Anions in the Presence of Dibenzo-18-crown-6
The radical anions of 2,5-di-t-butyl- and 2,5-dimethyl-benzoquinone have been prepared in 1,2-dimethoxyethane with Li+, Na+, or K+ as the counterion in the presence of dibenzo-18-crown-6.Linewidth alternation is observed in the e.s.r. spectra of these radical anions, with the lifetime of the counterion at one of the preferred sites near the radical anion varying in the sequence Li+ > Na+ > K+ at a particular temperature.It is apparent that in the presence of the crown ether ‘contact’ ion pairs are still present in the majority of the systems studied.The relatively minor influence of the crown ether on these systems is probably a result of the similarity in cation solvation environment presented by 1,2-dimethoxyethane and the crown ether.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Quality Control of: Dibenzo-18-crown-6. In my other articles, you can also check out more blogs about 14187-32-7
Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare