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Published on: July 14, 2017
A simple isomeric separation of D5h and Ih Sc3N@C80 by selective chemical oxidation
Bevan Elliott1, Lei Yu, Luis Echegoyen
1Department of Chemistry, Clemson University, Clemson, SC 29634, USA.
Abstract:
Two electrochemical oxidation waves assigned to the D(5h) isomer of Sc(3)N@C(80) have been identified, and a 270-mV difference in the first electrochemical oxidation potentials of the I(h) and D(5h) isomers has been measured. On the basis of this oxidative potential difference, a strategy for isomeric purification involving a selective chemical oxidation of the D(5h) isomer is reported. Variable scan cyclic voltammetry of the resultingly pure Sc(3)N@C(80) I(h) isomer shows evidence of a rapid endohedral chemical reaction following the first reduction process.
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