Germacyclopentadienide anions

The germacyclopentadienide anions present structures consistent with substantial localization of the negative charge on germanium unlike silicon (vide supra)-, germole dianions would be reasonable candidates for stable aromatic germanium derivatives. 

The hydrogermoles show different behaviour towards the lithium reagents. Metalla-tion at the germanium atom is observed and germacyclopentadienide anions are produced (see Section V.A). 

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