[MIII2MII3]n+ trigonal bipyramidal cages based on diamagnetic and paramagnetic metalloligands† †Electronic supplementary information (ESI) available: Additional NMR, IR, PXRD, ICPOES, MS, EPR data and CASSCF methodology. CCDC 1520425–1520429. Crystallographic data (including structure factors) for 1–5 have been deposited with the Cambridge Crystallographic Data Centre. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7sc00487g Click here for additional data file. Click here for additional data file.

EaStCHEM School of Chemistry, The Unive Edinburgh, EH9 3FJ, UK. E-mail: E.Brec [email protected] UK National Crystallography Service, C Higheld Campus, Southampton, SO17 1BJ Instituto de Ciencia de Materiales de Aragón Departamento de Física de la Materia Cond School of Chemistry, The University of Ma 9PL, UK. E-mail: eric.mcinnes@manchester. Department of Chemistry, University of Cop Copenhagen, Denmark. E-mail: piligkos@ch † Electronic supplementary information PXRD, ICPOES, MS, EPR data a 1520425–1520429. Crystallographic data have been deposited with the Cambridge and crystallographic data in CIF or 10.1039/c7sc00487g ‡ S. Sanz and H. M. O'Connor contribute Cite this: Chem. Sci., 2017, 8, 5526