Single-Crystal X-Ray Diffractometer (SC-XRD)

用X射线衍射法确定固体中的分子结构是表征新合成化合物的金标准。因此，该方法自上世纪80年代以来一直属于化工机构的常规设备。此外，邻近油田越来越多地使用这些方法。在萨尔兰大学，粉末和单晶X射线衍射仪由无机化学组操作和大量使用。此外，它们的使用也被提供给所有其他化学分支学科(有机化学和物理化学)作为服务，其他研究所(药学、材料科学)也是如此。在此，我们申请更换2004年投入使用的老化单晶X射线衍射仪。它的寿命即将结束，因为自2021年1月以来，供应商不再保证备件和维修。要更换的仪器在几年内容易出现故障，这大大减缓了科学进展(主要但不只是无机化学研究所的进展)，并产生了高昂的财政支出。因此，它还约束了该文书的所有责任。这一替换将使萨尔兰大学的化学科学和邻近学科将来也能获得足够和及时的设备。

The elucidation of molecular structures in the solid state by X-Ray diffraction is the gold standard for characterizing newly-synthesized compounds. Thus, this method belongs to the routine-equipment of chemical institutes since the 1980s. Also adjacent fields increasingly use these methods. At Saarland University, the powder- and single-crystal X-Ray diffraction instruments are operated and heavily used by the inorganic chemistry groups. Further, their use is provided also to all other chemical subdisciplines (organic and physical chemistry) as service, which is also the case for other institutes (pharmacy, material sciences). Herewith, we apply for the replacement for an aged single-crystal X-Ray diffractometer brought into service in 2004. It is approaching the end of its lifetime, as the supplier does not guarantee anymore spare parts and repairs since 1/2021. The instrument to be replaced is prone to breakdown for a couple of years now, which significantly slows scientific progress (mostly, yet not exclusively of the inorganic chemical institutes) and generates high financial expenditures. As such, it also binds all the time of the instrument’s responsibles. This replacement will allow the chemical sciences as well as adjacent disciplines at Saarland University to have access to an adequate and timely equipment also in the future.