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Design of and Stability Studies on Trefoil Knots Featuring RhCp* Building Blocks
Author(s) -
Guo BeiBei,
Lin YueJian,
Jin GuoXin
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201901728
Subject(s) - trefoil , steric effects , rectangle , flexibility (engineering) , ligand (biochemistry) , crystallography , chemistry , materials science , stereochemistry , mathematics , geometry , biology , biochemistry , receptor , statistics , agronomy
Four flexible ligands with different lengths, degrees of flexibility, and steric bulk were synthesized and used to prepare metal‐directed assemblies. Interestingly, minor differences among the ligands led to products with dramatically different topologies: a binuclear D ‐shaped macrocycle, tetranuclear rectangles, and hexanuclear trefoil knots. The interconversion of the trefoil‐shaped complexes was also investigated. This contribution introduces a rare ligand‐controlled trefoil–rectangle shape transformation in solution.