Metallacrowns, the inorganic equivalent to crown ethers, are macrocyclic molecules that follow a metal-nitrogen-oxygen [M-N-O] repeat in the ring of the molecule, unlike that of the carbon-carbon-oxygen [C-C-O] of a crown ether. Metallacrowns have been used for applications such as single-molecule-magnets (SMM), MRI contrast agents, and most recently, luminescent studies. The chemical and physical properties of metallacrowns can be altered by replacing the metal in the ring, the central metal, and the ligand framework comprising the metallacrown ring. Reported here is the substitution of different metal ions in the metallacrown ring with various lanthanide metal ions in the central cavity. The synthesis and luminescent properties of metallacrowns and sandwich molecules will be described.<br/>

Synthesis and luminescent studies of heterometallic metallacrowns and sandwich molecules

2019 Spring National Meeting

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