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A series of novel toroidal cyclo‐2,9‐tris‐1,10‐phenanthroline macrocycles with an unusual hexaaza cavity are reported. Nickel‐mediated Yamamoto aryl–aryl coupling was found to be a versatile tool for the cyclotrimerization of functionalized 1,10‐phenathroline precursors. Due to the now improved processability, both liquid‐crystalline behavior in the bulk phase and two‐dimensional self‐assembly at...
The ability of the macrocycle to exchange its cationic metal guest is highlighted on the cover picture. It contains a photography from an experiment that transforms the silver macrocycle to the sodium macrocycle. Upon addition of a reduction agent to a solution of the silver macrocycle, the progress of the reaction can be monitored by the strong change in fluorescence and the evolution of hydrogen‐gas...
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