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We study the magnetothermal properties of magnetically isotropic high-spin molecular nanomagnets containing 17 Fe 3+ ions per molecule linked via oxide and hydroxide ions, packed in a crystallographic cubic symmetry. Low-temperature magnetization and heat capacity experiments reveal that each molecular unit carries a net spin ground state as large as S=35/2 and a magnetic anisotropy as small...
Heptadecametallic, all-ferric pieces of molecular magnetite of general formula HL x [Fe 17 O 16 (OH) 12 (L) 12 Br 4 ]Br 3+x (L=β-picoline, isoquinoline, 3,5-lutidine; x=0, 1) are made by the simple dissolution of FeBr 3 in L. The β-picoline (or equivalent) molecules act simultaneously as solvent, base and capping ligand. The resultant...
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