Metalloid halogen cluster compounds of Germanium, Tin and Silicon

二元卤化物对于基本理解元素的性质及其化学性质是至关重要的。对于第14组，此类研究主要集中在有效氧化态+II和+IV上。通过制备共缩合技术，我们最近可以证明，当应用正确的供体分子时，可以获得像Ge14Br8(PEt3)4这样的锗类金属卤化物簇。这是第一个氧化态低于1的卤化锗的例子，在14族化学中开辟了新的领域，可以看作是理解从分子前体形成元素的重要一步。这种研究重族14元素的二元卤化物簇化合物的新方法将在项目中得到扩展，以启发这种纳米级化合物的性质。因此，研究应扩展到其他硅和锡的二元卤化物簇化合物。除此之外，新的卤化物团簇还可以在14族重元素领域获得新的固态结构和新的多孔网络。

Binary halides are of central importance for a fundamental understanding of the properties of the elements and their chemistry. In case of group 14, such investigations are focused on the well available oxidation states +II and +IV. Via the preparative co-condensation technique, we lately could show that an access to metalloid halide-clusters of germanium like Ge14Br8(PEt3)4 is possible, when the right donor molecule is applied. This first example of a germanium halide with an oxidation state lower than one, opens new areas in group 14 chemistry und can be seen as an important step towards an understanding of the formation of the element from molecular precursors. This new approach to binary halide cluster compounds of the heavier group 14 elements will be expanded within the project to enlighten the properties of such nanoscaled compounds. Thereby the investigations should be extended to other binary halide-cluster compounds of silicon and tin. Beside this, the novel halide-clusters should be used to get access to novel solid state structures and novel porous networks in the field of the heavier group 14 elements.