“…As stable intermediates in these reactions radical anions, like 7, can be observed, which are then reduced once again, here to the dianion 6. [6] These two types of reaction are analogous to the reductions of the corresponding styrene derivatives 1,1-diphenylethylene [7] and stilbene, [5a] obviously silyl groups have the same ability to stabilize negative charges in these polyanions as have aromatic substituents. The comparison holds even true for the structures observed for either 1,2-dilithio-1,1,2,2-tetrakis- thane (8), both show a double lithium bridge in trans configuration, interacting with the solvent (Figure 1).…”