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Three types of channel—right- (R) and left-handed (L) helical, and achiral (A)—alternate along the c axis in the structure of the title compound (see picture). The catalytically active groups of the 1-phosphonomethylproline ligands are directed into the channels, thus suggesting applications of this material in asymmetric catalysis. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z460724_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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Shi et al. (2004) studied this question.
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