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A remarkably adaptable nickel macrocycle, 1, acts as a divergent receptor towards the globular cage molecues C60, o-C2B10H12, and P4S3. The macrocycle either interacts with two cages, or one cage perched in each cavity, or self-associates as a dimeric divergent receptor with a cage perched in the available cavity of each macrocycle (see below).
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Andrews et al. (1998) studied this question.
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