Unexpected fullerene dimerizationvia [5,6]-bond upon functionalization of Cs-C70(CF3)8 by the Bingel reaction†
Abstract
The Bingel reaction of the Cs isomer of C70(CF3)8 has been found to yield two C70(CF3)8[C(CO2Et)2] monoadducts and one C70(CF3)8[C(CO2Et)2]2 bisadduct as its major products. Malonate addition occurs at those [6,6]-bonds that radiate from the polar pentagons of the C70(CF3)8 cage. Unexpectedly, X-ray single crystal analysis reveals dimerization of the above substances during