Main Group Metal Compounds with Terminal Hydride and Hydroxide Ligands: Synthesis and Applications

在这个由化学系化学合成计划资助的项目中，哥伦比亚大学的Gerard Parkin教授试图制备含有钙、锌和相关金属的新化合物。 这些元素支撑着制药、催化和材料科学等多种应用。 帕金已经确定了一种新的方法来开发这些丰富的资源的方式是根本的利益和潜在的实用价值。 其中一个项目旨在从这些金属到氢产生键。正在使用新的合成方法来寻找这种新的结构基序。具体地，氢仅连接到一个钙原子或一个锌原子。 预计这种氢原子可能在可用于解毒污染物的反应中表现出不寻常的行为。 另一个正在进行的反应是生产新型聚合物。该项目探索了地球上丰富的钙和锌可以取代铂等贵金属的程度，铂在美国没有发现。通过这种方式，研究解决了我们国家的经济和安全利益。帕金教授的课程为高中生、本科生和研究生提供化学合成、测量和理论方面的实践培训。 该项目还支持一项外展计划，重点是为纽约市公立学校的儿童进行化学演示。该项目旨在吸引不同种族的人才进入化学及相关技术领域。哥伦比亚大学的Gerard Parkin教授在化学系化学合成项目的资助下，研究了金属氢化物和氢氧化物的合成和反应性。新的反应性可能会导致从氢化物和氢氧化物基团的相对简单的structurees，由于使用大的多齿配体。 这些配体加强了明确的配位环境，并防止复合物对结合。比较第2族和第12主族金属的一个具体目的是证明3d、4d和4f5d水平的完成如何影响化学。 该研究涉及使用单晶X射线衍射和NMR光谱方法来确定合成分子的结构，以及计算方法来分析键合。 研究活动的更广泛影响的一个重要组成部分涉及培养学生成为未来的专业人士，无论是在学术还是工业环境中。 研究小组内的活动不仅涉及研究生和本科生（包括来自巴纳德学院的学生），还涉及高中生，从而在他们的教育的关键点提供重要的STEM经验。 此外，该研究小组还为来自不同种族的纽约市公立中学的儿童进行化学演示。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

In this project funded by the Chemical Synthesis Program of the Chemistry Division, Professor Gerard Parkin of Columbia University seeks to prepare new chemical compounds containing calcium, zinc, and related metals. These elements underpin applications as diverse as pharmaceuticals, catalysis, and materials science. Parkin has identified a new approach to exploiting these abundant resources in ways that are of fundamental interest and of potentially practical value. One project aims to generate bonds from these metals to hydrogen. This new structural motif is being sought using new synthetic methodology. Specifically, the hydrogen is attached only to one calcium or one zinc atom. It is expected that this hydrogen atom may exhibit unusual behavior in reactions that can be used to detoxify pollutants. Another reaction being pursued is the production of new kinds of polymers. The project explores the extent that calcium and zinc, which are earth-abundant, can replace precious metals such as platinum, which is not found in the United States. In this way, the research addresses our nation's economic and security interests. Professor Parkin's program provides hands-on training to high school, undergraduate, and graduate students in chemical synthesis, measurement, and theory. The project also supports an outreach program that focuses on chemical demonstrations for children from New York City's public schools. This program helps to attract an ethnically diverse pool into chemistry and related technical fields.Funded by the Chemical Synthesis Program of the Chemistry Division, Professor Gerard Parkin of Columbia University investigates the synthesis and the reactivity of metal hydride and hydroxide compounds. New reactivity may result from the relatively unadorned structurees of the hydride and hydroxide groups, owing to the use of large multidentate ligands. These ligands enforce well-defined coordination environments and prevent pairs of complexes from combining. One specific objective of comparing the Groups 2 and 12 main group metals is to demonstrate how completion of the 3d, 4d and 4f5d levels influence chemistry. The research involves the use of single crystal X-ray diffraction and NMR spectroscopic methods to determine the structures of the synthesized molecules, and computational methods to analyze the bonding. An important component of the broader impacts of the research activities involves training students to be future professionals, be it in an academic or industrial setting. The activities within the research group not only involve graduate and undergraduate students (including those from Barnard College), but also high school students, thereby providing an important STEM experience at a critical point in their education. In addition, the research group also performs chemistry demonstrations for children from ethnically diverse New York City public middle schools.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.