single crystal diffractometer

单晶衍射仪

• 批准号: 524434271
• 金额: --
• 依托单位: Philipps-Universität Marburg
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2023
• 资助国家: 德国
• 起止时间: 2022-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/524434271?language=en
• 关键词: single; crystal; diffractometer

The acquisition of an X-ray diffractometer with a microfocus dual source (copper and molybdenum), a temperature control unit (stepless between 400 K and 100 K), and a detector at the state of the art (short read-out time, sufficiently large detector area, large dynamic range, and high quantum efficiency for both types of radiation) for the analysis of single-crystals is requested. The diffractometer will be used for the analysis of single-crystalline compounds from the fields of solid state chemistry and materials science (departments of inorganic chemistry, physical chemistry) and from all fields of molecular chemistry (departments of inorganic chemistry, organic chemistry, biochemistry, chemical biology, analytical chemistry). This includes research centered around the following topics: i) compounds with and without heavy atoms ii) determination of the absolute configuration iii) phase transitions iv) temperature-sensitive compounds v) reactive species with restricted life-times under the conditions of the measurement vi) compounds that inherently show problems of crystallographic disorder vii) compounds with complex problems of crystallographic twinning The requested diffractometer will replace an existing diffractometer at the department of chemistry, which will reach the end of its planned lifetime in November 2023 (it was put in operation in 2008). Furthermore, a significantly larger number of "standard single-crystal X-ray analyses" will be possible in the same time span and publishable data sets on small single-crystals without heavy atoms will be possible with acceptable measurement times.

采集具有微焦点双源（铜和钼）的 X 射线衍射仪、温度控制单元（400 K 至 100 K 之间无级）和最先进的检测器（读出时间短，足以单晶分析需要大探测器面积、大动态范围和两种类型辐射的高量子效率。该衍射仪将用于分析固态化学和材料科学领域（无机化学、物理化学系）以及分子化学所有领域（无机化学、有机化学、生物化学、化学生物学、分析化学）。这包括围绕以下主题进行的研究：i) 含有和不含重原子的化合物 ii) 绝对构型的确定 iii) 相变 iv) 温度敏感化合物 v) 在测量条件下寿命有限的活性物质 vi ) 本身表现出晶体无序问题的化合物 vii) 具有复杂晶体孪生问题的化合物 所需的衍射仪将取代化学系现有的衍射仪，该衍射仪将于 2023 年 11 月达到其计划寿命结束（2008年投入运营）。此外，在相同的时间跨度内将有可能进行大量的“标准单晶X射线分析”，并且可以在可接受的测量时间内获得关于不含重原子的小型单晶的可发布数据集。