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On the usefulness of crown ethers in freezing out the intramolecular cation migration in radical ion pairs

✍ Scribed by Gian Franco Pedulli; Angelo Alberti

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 172 KB
Volume: 48
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(77)80216-9

No coin nor oath required. For personal study only.

✦ Synopsis

The addition of stoichiometric vnounts of dibenzo-18-crown-6 ether to soiutions of the sodium ion pairs of pyrazine and therephthalonitrile has been found to reduce dramatically the rate constant for the intramolecular migration of the alkali cation. The proton and nitrogen hyperfine splittings in the slow exchange region, could be easily measured under these eupetimental conditions.

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