Making up a foursome: Self-assembly of 4,4′-(3-pyridinemethoxy)benzophenone (L) and Pd(NO3)2 resulted in the quantitative formation of a quadruply stranded metallohelicate [Pd2(L)4], which undergoes spontaneous dimerization to an unprecedented chiral interlocked metallohelicate [Pd2(L)4]2 (see X-ray structure; C black, H white, N blue, O red).
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Fukuda et al. (2008) studied this question.
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