Synthesis and characterization of metalloid gold clusters

目前的后续申请是基于DFG赠款的结果，其中我们已经能够合成和表征许多新的金的类金属簇合物。此外，我们能够获得重要的洞察到的合作性质的集群在固态下，这一方面增加了两个数量级的电导率，并在另一方面的光学性能的影响。此外，我们在另一个项目中建立了几组新的金类金属簇合物。这些研究现在将继续进行，在当前的应用中计划扩展到准金属银簇或准金属间金/银簇。在这里，我们可以回到已经建立的Ag 64（PnBu 3）16 Cl 6的合成。该簇的稳定性应通过卤素取代基的取代和通过在合成期间并入金原子来增加。提高热和光化学稳定性对于该簇的进一步应用是必不可少的，该簇以约80%的优异结晶产率获得。类金属银簇的合成也将进一步扩大，初步调查显示，我们的合成方法的潜力，其中显着更大的类金属银簇高达164？银原子是可接近的。这些团簇与Ag_（64）（PnBu_3）_（16）Cl_6在灵敏度和不寻常的非球形结构方面类似，因此可以在这里建立一类新的类金属银团簇。在类金属金簇合物领域，我们的合成路线将扩展到硫醇盐稳定的簇合物。第一个例子表明，在这里我们也可以打开访问一类新的类金属簇合物，其中没有主食图案存在，并实现了新的安排的金原子簇的核心。然后还可以解决订书钉基序对类金属金簇的化学和物理性质有什么影响的问题，以及订书钉基序中不包括在簇核中的金原子是否可以用于应用，例如催化领域。这些研究得到了量子化学计算的支持，其中一些是与美国费尔法克斯的乔治梅森大学的克莱伯恩教授合作进行的。根据这些结果，可以更好地确定影响参数，这使得可以更容易地规划综合，这也使得计划中的调查与应用相关的相关性变得清晰。

The present follow-up application is based on the results of a DFG grant, in which we have already been able to synthesize and characterize many new metalloid cluster compounds of gold. Furthermore, we were able to gain important insights into the cooperative properties of the clusters in the solid state, which on the one hand increase the electrical conductivity by two orders of magnitude and have on the other hand an impact on the optical properties. Furthermore, we were able to establish several new groups of metalloid cluster compounds of gold in another project. These investigations are now to be continued, with an extension to metalloid silver clusters or intermetalloid gold/silver clusters being planned in the current application. Here we can fall back on the already established synthesis of Ag64(PnBu3)16Cl6. The stability of this cluster should be increased by substitution of the halogen substituents and by the incorporation of gold atoms during synthesis. Increasing the thermal and photochemical stability is essential for further applications of this cluster, which is obtained in excellent crystalline yields of about 80%. The synthesis of metalloid silver clusters is also to be further expanded, with initial investigations showing the potential of our synthetic approach, in which significantly larger metalloid silver clusters with up to 164 ?? silver atoms are accessible. These clusters are like Ag64(PnBu3)16Cl6 in terms of both sensitivity and the unusual non-spherical structure, so that a new class of metalloid silver clusters can be established here. In the field of metalloid gold clusters, our synthesis route is to be extended to thiolate-stabilized clusters. A first example shows that here too we can open-up access to a new class of metalloid cluster compounds in which no staple motifs are present and where new arrangements of the gold atoms are realized in the cluster core. The question what influence the staple motifs on the chemical and physical properties of a metalloid gold cluster have can then also be addressed and whether the gold atoms in the staple motif, which are not included in the cluster core can be used for applications, e.g. in the field of catalysis. These investigations are supported by quantum chemical calculations, some of which are carried out in collaboration with Prof. Clayborne at George Mason University, Fairfax/USA. Based on these results, influencing parameters can be better identified, which makes it possible to plan synthesis more easily, which also makes the application-related relevance of the planned investigations clear.