MRI-R2: Acquisition of Smart X2S Automated Bench Top Single Crystal X-ray Diffractometer

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。凭借该奖项，来自北卡罗来纳州农业技术州立大学化学系的Zerihun Assefa教授和同事Debasish Kuila将获得一台自动台式单晶X射线衍射仪。格林斯伯勒的北卡罗来纳州大学的研究人员也将使用该仪器，并将支持以下研究活动：1）研究有机溶剂分子对金属-金属相互作用和延长线性链的破坏; 2）合成、X射线晶体学和光致发光研究具有叔膦配体的高配位金（I）络合物; 3）使用捕光配体以增强来自金属位点的发射;和4）研究生物、生物有机和生物无机感兴趣的小原型分子。X射线衍射仪允许准确和精确地测量分子的完整三维结构，包括键距和角度，并提供关于分子相对于相邻分子的空间排列的准确信息。这里描述的研究将影响许多领域，包括化学，材料化学和生物化学。该仪器将成为这所历史悠久的黑人大学教学和研究的一个组成部分。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).With this award from the Major Research Instrumentation (MRI) program Professor Zerihun Assefa and colleague Debasish Kuila from the Department of Chemistry at North Carolina Agricultural & Technical State University will acquire an automated bench-top single crystal X-ray diffractometer. The instrument will also be used by researchers at the University of North Carolina at Greensboro and will support research activities such as: 1) study of disruption of metal-metal interactions and extended linear chains by organic solvent molecules; 2) synthesis, X-ray crystallography, and photoluminescence studies of high-coordinate gold(I) complexes with tertiary phosphine ligands; 3) use of light harvesting ligands to enhance emission from metal sites; and 4) study of small prototype molecules of biological, bioorganic, and bioinorganic interest.An X-ray diffractometer allows accurate and precise measurements of the full three dimensional structure of a molecule, including bond distances and angles, and provides accurate information about the spatial arrangement of a molecule relative to neighboring molecules. The studies described here will impact a number of areas, including chemistry, materials chemistry and biochemistry. This instrument will be an integral part of teaching as well as research at this historically black university.