Electron-reservoir complexes [FeICp(arene)] as selective initiators for a new electrocatalyzed reaction: synthesis of fulvalene bridged homo- and heterodinuclear zwitterions.
The electron transfer chain catalyzed redox reaction via the intramol. disproportionation of binuclear carbonylfulvene complexes in the presence of PR3 to give the title compds. is described. Thus, [FeICp(C6Me6)]-catalyzed intramol. disproportionation of carbonylfulvene complexes I (M1 = Mo, W, Fe, Ru; M2 = Mo, W; n = 2, 3) in THF/DME gave fulvalene-bridged heterodinuclear complexes II. The crystal structure of II (M1 = Fe, n = 2, R = Me) was detd.
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