Calcns. of 13C nuclear shieldings for low-energy isomers of C36H2x (x = 2,3) suggest that it should be possible to use exptl. 13C shifts, when these become available, to distinguish the isomeric form of the underlying fullerene cage and, in the case of isomers based on the six-fold sym. cylindrical fullerene cage 36:15, the degree of polar hydrogenation. [on SciFinder (R)]
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