Cobalt-Functionalized Open-[60]Fullerenes

Abstract

Redox noninnocent ligands have drawn considerable attention owing to effective interplay with metal(s) via π−d interactions, enabling magnetic on/off switching as well as redox-controlled catalytic reactions. Herein, we showcase the synthesis of [Co] 2 and [Co] 1 complexes bearing open-[60]fullerene ligands, whose absorption edges reached 1000 and 1500 nm, respectively. During the reaction, o-dichlorobenzene (solvent) was partly transformed to 2-chlorophenol, with which the Co complexes are most likely to participate in a reductive elimination step. While [Co] 2 contains a Co−Co bond identifiable by hybridized d z 2 orbitals, [Co] 1 possesses a fulveneconjugated open-[60]fullerene ligand which was generated by a ring-opening metathesis. Theoretical calculations suggested that [Co] 1 shows characteristic redox behavior where the ligand works as an electron reservoir.

The Effect of Different Substances Embedded in Fullerene Cavity on Surfactant Self-Assembly Behavior through Molecular Dynamics Simulation

“…The discovery of fullerenes [1] and the realization of their preparation methods in macroscopic quantities [2] have made possible extensive studies of C 60 and have since opened a new era of carbon science research. Fullerenes have attracted much attention in the fields of physics, chemistry, materials science, and even architecture and art because of their uniquely perfect symmetry and hollow structure [3][4][5][6][7]. However, the solubility of fullerenes in water is minimal, which greatly limits the development of fullerenes.…”