Same knot, longer rope: altering ligand geometry provides control over nuclearity in self-assembled trefoil knots

Taking advantage of the accumulation of a number of noncovalent intramolecular interactions, octanuclear and hexanuclear trefoil knots are self-assembled based on half-sandwich rhodium fragments. The selective synthesis of either the octanuclear or hexanuclear knot can be controlled by altering diff...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-09, Vol.57 (76), p.9772-9775
Main Authors: Wang, Qi-Li-Sha, Lin, Yue-Jian, Jin, Guo-Xin
Format: Article
Language:English
Subjects:
Crystallography
Knots
Rhodium
Self-assembly
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Summary:Taking advantage of the accumulation of a number of noncovalent intramolecular interactions, octanuclear and hexanuclear trefoil knots are self-assembled based on half-sandwich rhodium fragments. The selective synthesis of either the octanuclear or hexanuclear knot can be controlled by altering different dipyridyl arms. Selective constructions of Cp*Rh( iii )-based hexanuclear and octanuclear trefoil knots are realized using two ester bipyridyl ligands bearing minor differences in geometry.
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc03699h