Kristallographische Gegenüberstellung der Monokationen von Bis(fulvalen)dieisien und Bis(fulvalen) eisen-cobalt mit identischem Gegenion (PF6−)

Zusammenfassung A crystallographical comparison of bis(fulvalene)diiron (BFFefe+) and bis(fulvalene)iron-cobalt (BFFeCo+)mono-hexafluorophosphates reveals strikingly similar lattices.This provides further evidence for a valence averaged system also in the case of the mixed membered [0.0]metallocenophane salt BFFeCo+PF6−. Despite the nearly uniform charge distribution over both metallocene units, the heteronuclear BFFeCo+ molecules are not randomly oriented in the counter-ion enviroment. Lattice layers are slightly displaced in contrast to BFFeFe+ PF6−. The FeFe and the FeCo compound crystallize in the monoclinic space groups C2/m and C2/c, respectively.