Heptanuclear iron(iii) triethanolamine clusters exhibiting ‘millennium dome’-like topologies and an octanuclear analogue with ground spin states of S = 5/2 and 0, respectively†‡
Abstract
The synthesis and structural determination of the tripodal triethanolamine (teaH3) based octanuclear cluster [FeIII8O3(O2CCH2CH3)6(tea)(teaH)3(F)3]·0.5MeOH·0.5H2O (1) is reported. The octanuclear core in 1 has only been observed once before in the analogous teaH3 based [Fe8O3(O2CPh)9(tea)(teaH)3]·MeCN cluster and, as observed in that case, magnetic susceptibility measurements on 1 indicate a ground spin state of S = 0. Reaction of the trinuclear complex [FeIII3O(O2CCMe3)6(H2O)3](O2CCMe3) with the tripodal