Single crystal X-ray diffractometer

雅各布斯大学于2005年4月安装了DFG大型仪器赠款资助的单晶X射线衍射仪(Bruker D8 SMART APEX II Kappa，单源钼)。因此，这台仪器现在已经有16年的历史了，由于近年来仪器停机，需要定期维修。布鲁克AXS在2020年3月通知我们，从2021年1月起，不能保证当前的仪器仍然可以修复，因为部件丢失(该系统的生产于2012年停产)。这项提议的目的是用最先进的双源(钼/铜)X射线衍射仪取代目前的仪器，以确保在未来几年能够顺利运行。特别是，铜辐射(目前的机器只有钼辐射)将允许测量有机和有机金属化合物的X射线衍射数据集，这是对当前设备设置的一个重要扩展。这意味着雅各布斯和不来梅的有机化学家可以在这台新机器上轻松测量他们的样品。到目前为止，不来梅城邦还没有双源(钼/铜)X射线衍射仪，因此，我们来自不来梅大学的同事延斯·贝克曼教授明确支持这一建议(见所附他的信)。单晶X射线衍射仪是对新型化合物和材料进行固态结构表征的标准技术，因此，单晶X射线衍射仪是雅各布斯大学保持世界一流研究标准的必备仪器。该仪器将由雅各布斯大学化学科学部的所有研究小组(无机、有机、物理-有机、分析)使用(见用户概念和各自的支持函)。目前的X射线衍射仪自2005年以来一直被广泛使用(全年，每周7天)，雅各布斯的大量出版物包括X射线衍射数据证明了这一点。总之，购买新的双源(钼/铜)单晶X射线衍射仪对雅各布斯大学继续进行世界级的研究至关重要，同时它将为不来梅城邦提供它尚未拥有的仪器，因此，它将为该地区提供一项重要的科学资产。

Jacobs University installed a DFG large-instrument grant funded single-crystal X-ray diffractometer (Bruker D8 SMART APEX II Kappa, single-source Mo) in April 2005. Hence, this instrument is now > 16 years old and has required regular repair visits owing to instrument shutdowns in recent years. We were informed by Bruker AXS in March 2020 that from January 2021 onwards there is no guarantee that the current instrument can still be repaired, due to missing parts (the production of this system was discontinued in 2012). This proposal is meant to replace the current instrument with a top-of-the-line dual-source (Mo/Cu) X-ray diffractometer in order to ensure that a smooth operation is possible in the coming years. In particular, the Cu-radiation (the current machine has only Mo-radiation) will allow the measurement of XRD data sets of organic as well as organometallic compounds, which is an important extension beyond the current equipment setup. This means that the organic chemists at Jacobs and in Bremen could measure their samples easily on this new machine. To date there is no dual source (Mo/Cu) X-ray diffractometer in the city state of Bremen, and hence, our colleague Prof. Jens Beckmann from University Bremen explicitly supports this proposal (see his letter attached). Single-crystal XRD is a standard technique for the solid-state structural characterization of novel compounds and materials, and hence, the single-crystal X-ray diffractometer is a mandatory instrument for Jacobs University in order to maintain world-class research standards. The instrument is to be used by all research groups (inorganic, organic, physical-organic, analytical) in the chemical sciences division at Jacobs University (see user concept and respective support letters). The current XRD machine has been used extensively since 2005 (all year long, 7 days a week), as documented by the very large number of Jacobs publications that include XRD data. In summary, the purchase of a new dual-source (Mo/Cu) single-crystal X-ray diffractometer is of pivotal importance for Jacobs University to continue world-class research, and at the same time it will provide the city state of Bremen with an instrument that it does not yet have providing, therefore, an important scientific asset for the region.