The isolation and electrochemical property of Tb₂C₉₀ (I, II) isomers

Isolation and Electrochemical Property of Ho2O@C90 Isomers

“…According to the systematic electrochemical studies on a series of samarium-encapsulated EMFs, 29 it is proposed that with the increase in the size of carbon cage, the effect of electron transfer from endohedral metal atom(s) to carbon cages gets weaker and weaker, while the effect of carbon cages' size and symmetry gets stronger and stronger on the electrochemical properties of EMFs. We previously reported the electrochemical properties of Tb@C 82 (I, II), Tb 2 C 90 (I, II) and Ho 2 C 92 (I, II), [30][31][32] and found that the symmetry of carbon cage has little effect on their reduction process, but has a greater impact on their oxidation process. Lu et al reported the electrochemical properties of Y 2 C 2 @C 1 (1660)-C 108 (the EMF with the largest carbon cage isolated so far), 33 and found that its first oxidation potential is much lower than those of a series of Sc 2 C 2 @C 2n (2n = 72-88), reflecting the effect of the size and symmetry of carbon cage on the electrochemical properties of EMFs.…”