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A family of five [MIII2MII3]n+ trigonal bipyramidal cages (MIII = Fe, Cr and Al; MII = Co, Zn and Pd; n = 0 for 1–3 and n = 6 for 4–5) of formulae [Fe2Co3L6Cl6] (1), [Fe2Zn3L6Br6] (2), [Cr2Zn3L6Br6] (3), [Cr2Pd3L6(dppp)3](OTf)6 (4) and [Al2Pd3L6(dppp)3](OTf)6 (5) (where HL is 1-(4-pyridyl)butane-1,3-dione and dppp is 1,3-bis(diphenylphosphino)propane) are reported. Neutral cages 1–3 were synthesised using the tritopic [MIIIL3] metalloligand in combination with the salts CoIICl2 and ZnIIBr2, which both act as tetrahedral linkers. The assembly of the cis-protected [PdII(dppp)(OTf)2] with [MIIIL3] afforded the anionic cages 4–5 of general formula [MIII2PdII3](OTf)6. The metallic skeleton of all cages describes a trigonal bipyramid with the MIII ions occupying the two axial sites and the MII ions sitting in the three equatorial positions. Direct current (DC) magnetic susceptibility, magnetisation and heat capacity …
Royal Society of Chemistry
Publication date: 
1 Jan 2017

Sergio Sanz, Helen M O'Connor, V Martí-Centelles, Priyanka Comar, Mateusz B Pitak, Simon J Coles, Giulia Lorusso, E Palacios, Marco Evangelisti, Amgalanbaatar Baldansuren, NF Chilton, Høgni Weihe, EJL McInnes, Paul J Lusby, Stergios Piligkos, EK Brechin

Biblio References: 
Volume: 8 Issue: 8 Pages: 5526-5535
Chemical science