Lawrence Berkeley National Laboratory
The remarkable influence of: N, O -ligands in the assembly of a bis-calixarene-supported [Mn IV 2 Mn III 10 Mn II 8] cluster
- Author(s): Coletta, M
- Sanz, S
- McCormick, LJ
- Teat, SJ
- Brechin, EK
- Dalgarno, SJ
- et al.
Published Web Locationhttps://doi.org/10.1039/c7dt04233g
© 2017 The Royal Society of Chemistry. Calixarenes are versatile ligands, capable of supporting the formation of a wide variety of polymetallic clusters comprising 3d, 4f or 3d-4f metal ions. Calixarene-based metal ion fragments act as both bridging and structure capping moieties in these systems, and this behaviour is systematically extended upon moving to bis-calixarene, a relatively new ligand in which two calixarenes are tethered at the methylene bridge position. N,O-Ligands greatly influence cluster formation with bis-calixarene, affording a remarkable mixed-valence [MnIV2MnIII10MnII8] cluster that displays coordination chemistry typical of each ligand type, but also new structure capping behaviour for the latter.