Salicylaldoxime-Supported Nona- and Tetrametallic Fe III Cages

The syntheses, structures and magnetic properties of seven new iron complexes, [Fe4O2(sao)4(tacn)2]·2MeOH·H2O (1·2MeOH·H2O), [Fe4O2(Me-sao)4(tacn)2]·2MeCN (2·2MeCN), [Fe4O2(Etsao) 4(tacn)2]·MeOH (3·MeOH), [Fe9/NaO4(Et-sao)6(hmp)8]·3MeCN·Et2O (4·3MeCN·Et2O), [Fe4(Et-sao)4(hmp)4]·Et-saoH2 (5·Et-saoH2), [Fe4(Ph-sao)4(hmp)4]·2MeCN (6·2MeCN) [Fe9/O3(sao)(pdm)6(N3)7(H2O)] (7), stabilised with salicylaldoxime (saoH2) or derivatised salicylaldoxime (R-saoH2) ligands in conjunction with either 1,4,7-triazocyclononane (tacn), 2-(hydroxymethyl)pyridine (hmpH) or 2,6-pyridinedimethanol (pdmH2) are discussed.