400 MHz NMR console

400 MHz 核磁共振控制台

• 批准号: 536629661
• 金额: --
• 依托单位: Albert-Ludwigs-Universität Freiburg
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2024
• 资助国家: 德国
• 起止时间: 2023-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/536629661?language=en
• 关键词: 400; MHz; NMR; console

The 400 MHz NMR three-channel device with wide-bore magnet of the MagRes network, located in the MagRes NMR spectrometer pool at the Institute for Inorganic and Analytical Chemistry (IAAC) of the Albert-Ludwigs-University of Freiburg, is the main research NMR spectrometer at the IAAC. Both high-resolution and solid-state NMR experiments are carried out with this device. The focus of application lies in extensive heteronuclear measurements: both in the form of correlation experiments and in the direct detection of nuclei such, as e. g. 19F, 31P, 7Li, 119Sn, 11B, 71Ga, 129Xe, 23Na, 27Al, 93Nb, 195Pt, 29Si, 14N, 47/49Ti, 109Ag and others. The field strength of 9.4 Tesla is ideal for measuring many of these nuclei, since the large frequency ranges of the chemical shift and the effective chemical-shift relaxation of many of these spins can lead to problems in the detection of these nuclei at higher field strengths and even broaden signals due to the fast T1 relaxation to such an extent that they can hardly be detected. Diffusion measurements with different nuclei are carried out numerously, as well as measurements at varying temperatures, especially at low temperatures. In addition, as part of the MagRes network, the device not only offers the main users, but all users at the University of Freiburg measurement options that are not available with any other NMR spectrometer at the this site (e. g. 19F,X{1H}, 1H,X{19F}, X{1H,19F}). It also makes an important contribution to the supply of solid-state NMR measurements. The console of this spectrometer is now more than 16 years old and urgently needs to be renewed. Since the current console has now been declared "out of service" by the manufacturer, the supply of spare parts is not guaranteed in the future. The new purchase of the console not only ensures the operational safety of this indispensable device, but also at the same time the hardware (e. g. through modern "multi-receive" technology) is modernized and the available experiments are brought up to date, so that the competitiveness of the research supported by this NMR spectrometer can also be permanently guaranteed for the future. The modernization of the console of this important 400 MHz NMR spectrometer is therefore given the highest priority by the MagRes network of the Albert-Ludwigs-University of Freiburg. We expect that the service life of the 16-year-old and very stable magnet with only moderate helium consumption (approx. 180 L/a) will be completely sufficient to be able to operate the NMR spectrometer with the new console for its expected life time.

400 MHz NMR三通道设备，带有MAGRES网络的宽孔磁铁，位于弗雷布尔格的Albert-Ludwigs-University的无机和分析化学研究所（IAAC）的MagRes NMR光谱仪池中，是IIAAC的主要研究NMR光谱仪的主要研究NMR光谱仪。使用该设备进行高分辨率和固态NMR实验。应用的重点在于广泛的异核测量值：以相关实验的形式和直接检测到e。 g。 19f，31p，7li，119sn，11b，71ga，129xe，23na，27al，93nb，195pt，29si，14n，47/49ti，109ag等。 9.4特斯拉的场强是测量许多核的理想选择，因为化学位移的较大频率范围和许多这些自旋的有效化学班次松弛可能会导致在检测这些核时在较高的田间强度下检测这些核的问题，甚至由于快速的T1宽松而扩大了信号，以至于很难检测到它们很难检测到的程度。用不同核的扩散测量是众多进行的，以及在不同温度下，尤其是在低温下进行的测量。此外，作为MAGRES网络的一部分，该设备不仅提供了主要用户，而且还提供了弗莱堡大学的测量选项的所有用户，该选项与该站点的任何其他NMR光谱仪都无法获得（例如，g。g。19f，x {1H}，1H，1H，1H，x {19f}，x {19f}，x {1H，19f}）。它还为固态NMR测量的供应做出了重要贡献。该光谱仪的控制台现在已经有16多年的历史了，需要更新。由于现在已经由制造商声明了当前的控制台，因此将来不能保证备件的供应。该控制台的新购买不仅确保了这种不可或缺的设备的运营安全性，而且同时也现代化了硬件（例如，通过现代的“多接收器”技术）是现代化的，并且可用的实验是最新的，因此该NMR Spectrement Spectres支持的研究的竞争力也可以永久保证未来。因此，这项重要的400 MHz NMR光谱仪的控制台的现代化被弗莱堡的艾伯特·卢德沃斯 - 大学的MAGRES网络赋予了最高优先级。我们预计，只有中等氦气消耗的16岁且非常稳定的磁铁的使用寿命（约180 L/A）将完全足以在其预期的寿命中使用新的控制台运行NMR光谱仪。