Metalloid halogen cluster compounds of Germanium, Tin and Silicon

二元卤化物对于基本了解元素的性质及其化学性质至关重要。在第14组的情况下，这些研究集中在充分可用的氧化态+II和+IV。通过制备共缩合技术，我们最近可以表明，当应用正确的供体分子时，获得锗的类金属卤化物簇如Ge14Br8（PEt3）4是可能的。氧化态低于1的卤化锗的第一个例子，开辟了第14族化学的新领域，可以被视为理解从分子前体形成元素的重要一步。这种新的方法，较重的第14族元素的二元卤化物簇化合物将在该项目中扩展，以启发这种纳米级化合物的性质。因此，研究工作应扩展到其他硅锡二元卤化物簇合物。除此之外，新型卤化物簇合物还可以用于获得更重的14族元素领域中的新型固态结构和新型多孔网络。

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.