sigma-Bonded Organocalcium, -Strontium, and -Barium Compounds: Synthesis and Applications

雪城大学化学系的Karin Ruhlandt-Senger因研究钙、锶和钡的有机金属络合物而获得了无机、生物无机和有机金属化学项目的支持。Sigma键合的烷基、芳基和硫醇酸盐可以通过使用辅助配体来制备和研究，这些辅助配体可以稳定这些大的、高度亲电的金属中心。这项工作的一个重要目标是获得有关金属-碳或金属-硫键的离子或共价特征的详细信息，并研究碱土家族的周期性趋势。另一个目标是利用这些络合物独特的反应性来制备理想的有机结构。对这些碱土化合物的成键和反应性的基础研究将有助于加深对这些相对未被探索的金属的有机金属化学的理解。此外，参与这项工作的本科生和研究生将通过研究这些活性物种，学习合成、表征和催化方面的宝贵技能。

Karin Ruhlandt-Senge, Department of Chemistry, Syracuse University, is supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program for her work with organometallic complexes of calcium, strontium and barium. Sigma-bonded alkyls, aryls and thiolates can be prepared and studied by using ancillary ligands that can stabilize these large, highly electrophilic metal centers. One important goal of this work is to obtain details about the ionic or covalent character of the metal-carbon or metal-sulfur bond and to investigate periodic trends down the alkaline earth family. Another goal is to exploit the unique reactivity of these complexes to prepare desirable organic structures. Fundamental studies of bonding and reactivity of these alkaline earth compounds will lead to an increased understanding of the organometallic chemistry of these relatively unexplored metals. In addition, undergraduate and graduate students involved in the work will learn valuable skills in synthesis, characterization and catalysis by studying these reactive species.