The reactions of homoatomic [E9]x- Zintl clusters (E = Ge, Sn; x = 2, 3, 4) as well as homoatomic clusters with functional groups were implemented with low valent organyls of group 13 and 14 with the aim of expanding the cluster. The reaction of K4Ge9 with GaCp * yielded the anion [Ge9Ga-GaGe9]4-, in which the Ge9 clusters are expanded with a gallium atom. In addition, two clusters are linked by a [Ga-Ga] bond. Reactions with low-valent silicon compounds, on the other hand, lead to the splitting off of the organic residue on silicon, such as the formation of the compounds [K(dipp)2][Ge9(Si(SiMe3)3)3]·tol and [dipp-H][Ge9(Si(SiMe3)3)3]·2acn shows. The compounds were characterized by X-ray diffraction on single crystals and NMR spectroscopy. The use of an ESI-MS set up in the course of the dissertation made it possible to characterize the species in solution by means of their characteristic isotope distribution by mass spectrometry.
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The reactions of homoatomic [E9]x- Zintl clusters (E = Ge, Sn; x = 2, 3, 4) as well as homoatomic clusters with functional groups were implemented with low valent organyls of group 13 and 14 with the aim of expanding the cluster. The reaction of K4Ge9 with GaCp * yielded the anion [Ge9Ga-GaGe9]4-, in which the Ge9 clusters are expanded with a gallium atom. In addition, two clusters are linked by a [Ga-Ga] bond. Reactions with low-valent silicon compounds, on the other hand, lead to the splittin...
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