Electronic interactions in a new fullerene dimer: C(122)H(4), with two methylene bridges
The isolation of a new fullerene dimer, C(122)H(4), and its structural characterization by (13)C NMR and (1)H NMR spectroscopy and by UV/vis and IR spectroscopy are reported. The structure of this dimer consists of two fullerene cages, which are directly connected through two C-C bonds and two methylene bridges. Consequently, adjacent hexagonal faces of the two fullerene cages are arranged in a face to face manner. Molecular orbital calculations indicate that the proximity of the fullerene cages results in significant through space overlap in both the HOMO and LUMO. As a consequence of this overlap, the electrochemistry of the dimer shows electronic communication with stepwise reduction of each cage.
Dragoe
N
Department of Applied Chemistry, University of Tokyo, and Japan Science and Technology Corporation, JST-CREST, Tokyo 113-8656, Japan.
Shimotani
H
Hayashi
M
Saigo
K
de Bettencourt-Dias A
Balch
AL
Miyake
Y
Achiba
Y
Kitazawa
K