Synthesis of stable derivatives of c(62): the first nonclassical fullerene incorporating a four-membered ring.
A rational synthetic approach to the first four-membered ring-containing derivatives of C(62) is reported. They were synthesized by an inverse electron demand Diels-Alder reaction of 3,6-diaryl-1,2,4,5-tetrazines with C(60) in o-dichlorobenzene, followed by visible light irradiation at reflux. The structure of these nonclassical fullerenes derivatives was determined by X-ray single-crystal diffraction.
Qian
Wenyuan
W
Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, USA.
Chuang
Shih-Ching
SC
Amador
Roberto B
RB
Jarrosson
Thibaut
T
Sander
Michael
M
Pieniazek
Susan
S
Khan
Saeed I
SI
Rubin
Yves
Y