doi:10.1002/anie.202405666engWilson, Lucinda R. B.Canaj, Angelos B.Cutler, Daniel J.McCormick McPherson, Laura J.Coles, Simon J.Nojiri, HiroyukiEvangelisti, MarcoSchnack, JürgenDalgarno, Scott J.Brechin, Euan K.Stellated cuboctahedron of Fe IIIART-2024-139508The solvothermal reaction of FeCl2 ⋅ 4H2O and H4TBC[4] in a basic dmf/EtOH solution affords an [FeIII18] Keplerate conforming to a stellated cuboctahedron. Magnetic and heat capacity measurements reveal spin frustration effects arising from the high symmetry. A crossover between inverse and direct magnetocaloric effects is observed at ~10 K for applied-field changes lower than 3 T.2024http://zaguan.unizar.es/record/14479510.1002/anie.202405666http://zaguan.unizar.es/record/144795oai:zaguan.unizar.es:144795info:eu-repo/grantAgreement/ES/MICINN/PID2021-124734OB-C21Angewandte Chemie (International ed.) 63, 37 (2024), e202405666 [6 pp.]All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/closedAccess