1.2- Dithiolenes metallocenium compounds

In this section, we will focus only on compounds based on M(dmit)2 anions and (Cp 2Mn)+, since Gama and Almeida also report on metal-dithiolene containing compounds with metalloceniums in Chapter (see pp. 97-140). 

Unfortunately, whatever the metallocenium and the metal bis-dithiolene moiety, no fractional oxidation state compound with formula (Cp 2M ) [M(M02] (with x < 1) has been reported in the literature. Concerning (Cp 2M )[Ni(dmit)2] (M = Fe, Cr, Mn), all our attempts to obtain chemically or electrochemically (Cp 2M )x[Ni(dmit)2] (with x < 1) have resulted in the synthesis of noncrystalline samples as sticky powders or mixture of fibers and grains, whose characterization was not possible. Therefore the combination between M(dmit)2 and metallocenium has been unsuccessful to obtain magnetic molecular conductors. 

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