Upgrading the NMR facilities at the University of North Texas.

该奖项由2009年美国复苏与再投资法案(公法111-5)资助。在化学研究仪器和设施：多用户计划(CRIF：MU)的支持下，北得克萨斯大学化学系将购买一台用于液体和固体研究的400 MHz光谱仪，并升级一台用于固体研究的500 MHz光谱仪。这些改进将支持一系列研究项目，包括：1)金属-有机和有机分子堆积相互作用及其光电性质的研究；2)硅氧分子电子材料形成机理的研究；3)过渡金属络合物和均相催化剂的金属团簇化学研究；4)聚合物插入粘土基质形成纳米复合材料的研究。多核核磁共振谱是广泛应用于合成化学和材料科学的强大分析工具。这些光谱使研究人员能够识别和表征未知物质。它们提供了关于分子和材料中原子的排列和连通性的信息，即通过检测原子的核自旋性质引起的能级之间的跃迁来了解它们的结构。这些光谱仪将通过在北德克萨斯大学以及邻近的德克萨斯女子大学和奥斯汀学院使用现代仪器进行实践研究，促进学生(高中到博士生)的教学和培训。学生将能够远程访问他们的数据。使用远程访问的核磁共振数据的材料和练习将被开发用于在线仪器分析课程。

ABSTRACTThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).With support from the Chemistry Research Instrumentation and Facilities: Multiuser program (CRIF:MU), the Department of Chemistry at the University of North Texas will acquire a 400 MHz spectrometer for the study of liquids and solids and upgrade a 500 MHz spectrometer for the study of solids. These improvements will support a range of research projects, including: 1) the study of stacking interactions in metal-organic and organic molecules and their optoelectronic properties; 2) investigations of the mechanism of formation of silicon-oxygen molecular electronic materials; 3) research on metal cluster chemistry of transition metal complexes and homogeneous catalysts; and 4) the study of polymers intercalated into clay matrices to form nanocomposites.Multinuclear NMR spectroscopy is a powerful analytical tool widely used in synthetic chemistry and materials science. The spectra enable researchers to identify and characterize unknown substances. They provide information on the arrangement and connectivity of atoms in molecules and materials, i.e., their structures by detecting transitions between energy levels arising from the nuclear spin properties of atoms. These spectrometers will promote teaching and training of students (high school through doctoral students) via hands-on research with modern instrumentation at North Texas University and at the neighboring Texas Woman's University and Austin College. Students will be able to remotely access their data. Materials and exercises using remotely accessed NMR data will be developed for use in an online instrumental analysis course.