The first self-assembled trimetallic lanthanide helicate: different coordination sites in symmetrical molecular architecturesElectronic supplementary information (ESI) available: least-square planes, selected bond distances and bite angles and a figure showing the atomic numbering scheme for [Eu3(C63H65N13O2)3](CF3SO3)9(CH3CN)9(H2O)2. A scheme summarizing the multistep synthesis of L3 and tables collecting ESI-MS and 1H NMR data, and elemental analyses. See http://www.rsc.org/suppdata/cc/b2/b201859d/

Abstract

A tris-tridentate segmental ligand has been designed for the self-assembly of homotrimetallic triple-stranded lanthanide helicates possessing different coordination sites along the threefold axis.