A molecular endless (74) knot

  title={A molecular endless (74) knot},
  author={David A. Leigh and Jonathan J. Danon and Stephen D. P. Fielden and Jean-François Lemonnier and George F. S. Whitehead and Steffen L. Woltering},
  journal={Nature Chemistry},
  pages={117 - 122}
Current strategies for the synthesis of molecular knots focus on twisting, folding and/or threading molecular building blocks. Here we report that Zn(ii) or Fe(ii) ions can be used to weave ligand strands to form a woven 3 × 3 molecular grid. We found that the process requires tetrafluoroborate anions to template the assembly of the interwoven grid by binding within the square cavities formed between the metal-coordinated criss-crossed ligands. The strand ends of the grid can subsequently be… 
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