Highly Selective Synthesis of Iridium(III) Metallacatenanes through Component Pre‐Orientation by π⋅⋅⋅π Stacking

A series of molecular metalla[2]catenanes featuring Cp*Ir vertices have been prepared by the template‐free, coordination‐driven self‐assembly of dinuclear iridium acceptors and 1,5‐bis[2‐(4‐pyridyl)ethynyl]anthracene donors. The metalla[2]catenanes were formed by using a strategically selected linke...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2019-04, Vol.58 (18), p.5882-5886
Main Authors: Wei‐Long Shan, Yue‐Jian Lin, Hahn, F Ekkehardt, Guo‐Xin Jin
Format: Article
Language:English
Subjects:
Anthracene
Apexes
Coordination compounds
Iridium
Stacking
Online Access:Get full text
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Summary:A series of molecular metalla[2]catenanes featuring Cp*Ir vertices have been prepared by the template‐free, coordination‐driven self‐assembly of dinuclear iridium acceptors and 1,5‐bis[2‐(4‐pyridyl)ethynyl]anthracene donors. The metalla[2]catenanes were formed by using a strategically selected linker type that is capable of participating in sandwich‐type π–π stacking interactions. In the solid state, the [2]catenanes adopt two different configurations depending on the halogen atoms at the dinuclear metal complex bridge. Altering the solvent or the concentration, as well as the addition of guest molecules, enabled controlled transformations between metalla[2]catenanes and tetranuclear metallarectangles.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201900556