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Selective Synthesis of Discrete Mono‐, Interlocked‐, and Borromean Ring Ensembles Based on a π ‐Electron‐Deficient Ligand
Author(s) -
Feng HuiJun,
Gao WenXi,
Lin YueJian,
Jin GuoXin
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201900741
Subject(s) - catenane , thiazole , ligand (biochemistry) , supramolecular chemistry , ring (chemistry) , stacking , chemistry , crystallography , stereochemistry , pyrene , combinatorial chemistry , crystal structure , molecule , organic chemistry , receptor , biochemistry
Herein, we present a new synthetic approach to achieve selective supramolecular transformations and construct different interlocked metallacycles featuring a π ‐electron‐deficient thiazolo[5,4‐d]thiazole‐derived ligand. We demonstrate that the formation of mono‐rings, interlocked rings ([2]catenanes) and Borromean rings can be controlled by adjusting the length of the binuclear half‐sandwich Rh III and Ir III building blocks. Furthermore, a concentration effect or D‐A stacking interaction between the pyrene guest and the thiazolo[5,4‐d]thiazole‐based ligand promotes a unique and reversible conversion between catenane structures and metalla‐rectangles. The synthetic results are supported by single‐crystal X‐ray diffraction analysis.