The first lanthanide-templated molecular wheel containing six copper ions

A novel copper(II)–praseodymium(III) hetero-polynuclear complex [Cu6PrL6][Pr(H2O)10]·14H2O (H3L: N-carboxymethyl-N-(2-carboxyphenyl) glycine acid) has been structurally and magnetically characterized, which consists of a molecular wheel of six Cu(II) ions with a Pr(III) ion axle.

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