Abstract
Upon high-temperature (340-360 °C) chlorination with VCl4, an isolated-pentagon-rule (IPR) C2-C88(33) fullerene is just chlorinated to C88(33)Cl22 and C88(33)Cl28, but a VCl4/SbCl5 mixture promotes a five-step cage transformation to nonclassical C86(NC2)Cl30 with two heptagons and five pairs of fused pentagons. Another chlorination-promoted seven-step transformation of an IPR fullerene removes as many as four C2 fragments from C96 to give a nonclassical C88(NC1)Cl30 with cage heptagon and six fused pairs of pentagons. We discuss the driving forces behind the observed transformations and probable detailed pathways thereof.
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