“…Synthesis: The trimeric iron(iii) acetate SBU was first prepared according to Dziobkowski et al [33] Subsequently, iron(iii) acetate, fumaric acid (HO 2 C-C 2 H 2 -CO 2 H; Acros, 99 %) or trans,transmuconic acid (HO 2 C-C 4 H 4 -CO 2 H; Aldrich, 98 %), sodium hydroxide (Aldrich, 97 %), deionized water, and methanol (Prolabo, 99 %) were mixed in the following ratios: 1:3:1.5:50:1000 (based on one trimer). The resulting orange gels were aged at 100 8C for 3 days in a teflonlined Parr bomb and cooled down to room temperature.…”