RUI: Advancing the Organometallic Chemistry of Octahedral Re6 Clusters Containing Alkynyl Ligands

在化学系化学合成项目的支持下，伊利诺伊州州立大学的丽莎Szczepura教授将开发用于制备和研究含有乙炔基配体的过渡金属簇合物的合成方法。含有乙炔化物配体的相关单金属过渡金属物质的化学性质在它们的结构、反应性和物理性质方面相当丰富，使得它们在制备反应性催化剂中作为前体和在制备扩展材料中作为结构单元是理想的。本项目主要研究含乙炔基的多金属簇合物的合成和性质。将评估新合成的簇在催化应用和制备杂化材料中的潜力。这项研究将与本科生和硕士生合作进行。此外，Szczepura博士将与校园内的单位合作，与科学领域代表性不足的学生接触，目标是让他们参与拟议的研究。 根据该奖项，Szczepura博士和她在伊利诺伊州立大学的团队将探索基于金属离子的簇-乙炔化物化学的基本方面，以确定这些簇核心的独特性质如何影响配位乙炔化物配体的化学性质。该提案的主要目标包括探索稀土乙炔化合物的化学性质，以确定这些簇-碳相互作用的性质，开发通过C-桥将簇核连接在一起的合成方法，并研究这些有机金属簇络合物的电化学和物理化学性质。从这项工作的结果有可能提供一个更深入的了解的性质，Re为基础的簇-碳相互作用。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。

With the support of the Chemical Synthesis program in the Division of Chemistry, Professor Lisa Szczepura of Illinois State University will develop synthetic methodologies for the preparation and study of transition metal cluster complexes containing acetylide-based ligands. The chemistry of the related monometallic transition metal species containing acetylide ligands is quite rich in terms of their structures, reactivity and physical properties making them desirable as precursors in the preparation of reactive catalysts and building blocks in the preparation of extended materials. This project focuses on the synthesis and properties of the related but relatively unexplored multimetallic cluster systems containing acetylides. The potential of the newly synthesized clusters in catalysis applications and in the preparation of hybrid materials will be assessed. This research will be conducted in collaboration with undergraduate and master’s level students. In addition, Dr. Szczepura will work with units across campus to engage with underrepresented students in science with the goal of involving them in the proposed studies. Under this award, Dr. Szczepura and her team at Illinois State University will explore fundamental aspects of rhenium-based cluster-acetylide chemistry to determine how the unique properties of these cluster cores impact the chemistry of the coordinated acetylide ligands. The main objectives of this proposal include an exploration into the chemistry of Re-based acetylides to determine the nature of these cluster-carbon interactions, the development of synthetic methodologies which link cluster cores together via C-based bridges, and investigations into the electrochemical and photophysical properties of these organometallic cluster complexes. Results from this work have the potential to provide a deeper understanding of the nature of Re-based cluster-carbon interactions. The results obtained from the proposed objectives will advance the fundamental understanding of organometallic hexanuclear octahedral clusters while exploring a new facet of metal acetylide chemistry.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.