Abstract
This overview explains some new aspects of chemical functionalization of endohedral metallofullerenes (EMFs) that have been unveiled in recent years. After differences in chemical reactivity between EMFs and the corresponding empty fullerenes are discussed, cage-opening reactions of EMFs are examined. Then, the selective bisfunctionalization of EMFs is explained. Finally, single-bonding derivatization of EMFs is addressed. The diversity and applicability of the chemical functionalization of endohedral metallofullerenes are presented to readers worldwide.
Highlights
Endohedral metallofullerenes (EMFs) are hybrid molecules of spherical nanocarbons, known as fullerenes, with atomic metal(s) or metal-containing clusters encaged inside
We have examined on the D2d (23)-C84 carbon cage, because the carbon cage is the sole exception by which both the empty and the endohedral species are thermodynamically stable at ambient conditions
5,6-diphenyl-3-(2-pyridyl)-1,2,4-triazine in a sealed tube alsothermal important for elucidating the chemical reactivity of non-isolated pentagon rule (IPR) endohedral metallofullerenes (EMFs)
Summary
Endohedral metallofullerenes (EMFs) are hybrid molecules of spherical nanocarbons, known as fullerenes, with atomic metal(s) or metal-containing clusters encaged inside. Studies using experimentation to compare the chemical reactivities of empty fullerenes and the EMFs were left unexplored until 2016 In this respect, we have examined on the D2d (23)-C84 carbon cage, because the carbon cage is the sole exception by which both the empty and the endohedral species are thermodynamically stable at ambient conditions. Cage-opening reactions with density functional theory (DFT) calculations, the scenario of the photoreactions was proposed as of EMFs have remained unexplored until recently, due to the limited availability of EMFs and follows: first, the regioselective [3 + 2] cycloaddition of C84 with in-situ generated diazoadamantane different chemical reactivities of EMFs from those of empty fullerenes.
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