“The preparative exploration of ever more shallow potential troughs” is facilitating the synthesis of supramolecular complexes with increasing “storybook” character. Reduction of Ph2C CPh2 under argon using a sodium mirror and diethyl ether results in green crystals with metallic luster and a novel band structure. A single C2Ph4 segment is shown on the right, the view being one that clearly reveals the rotation of one half of the molecule relative to the other.
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Bock et al. (1989) studied this question.
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