Speciation of Lanthanide Polyoxometalates: Towards New Materials

亨特学院化学系的Lynn Francesconi教授受到无机、生物无机和有机金属化学项目的支持，她的材料化学研究是将镧系（Ln）离子掺入多金属氧酸盐（pom）中，这是一种广泛用于多相催化的早期过渡金属氧化物阴离子。各种分析方法，包括稳定常数的测定，使用物种特异性技术来研究物种形成（放射性，发光和固态核磁共振）以及常规表征工具，如x射线晶体学和溶液多核核磁共振波谱，将提供对Ln POMs水溶液和有机溶液化学的全面了解。了解镧系多金属氧酸盐（lnpom）的溶液形态化学是其在均相催化、医学、分离和新功能材料开发等领域成功应用的先决条件。本研究将重点研究含镧系离子的新型多金属氧酸盐（POMs）的化学性质。多金属氧酸盐是早期过渡金属氧化物阴离子，广泛应用于多相催化。镧系元素在多金属氧酸盐中的取代可以使这些材料在均相催化、医学、分离和新功能材料的开发中得到应用。博士后、研究生和本科生将在无机材料合成和表征方面接受多方面的培训。

Professor Lynn Francesconi of Hunter College Chemistry Department is supported by the Inorganic, Bioinorganic and Organometallic Chemistry program for her materials chemistry studies on the incorporation of lanthanide (Ln) ions into polyoxometalates (POMs), early transition metal oxide anions that are widely used in heterogeneous catalysis. Various analytical approaches, encompassing stability constant determination, use of species-specific techniques to study speciation (radioactivity, luminescence, and solid-state NMR) as well as routine characterization tools, such as X-ray crystallography and solution multinuclear NMR spectroscopy, will provide thorough understanding of the aqueous and organic solution chemistry of Ln POMs. Understanding solution speciation chemistry of lanthanide polyoxometalates (Ln POMs) is a prerequisite for their successful use in applications such as homogeneous catalysis, medicine, separations, and development of new functional materials.This research will focus on the chemistry of new polyoxometalates (POMs)containing lanthanide ions. Polyoxometalates are early transition metal oxide anions that are widely used in heterogeneous catalysis. Lanthanide substitutions in polyoxometallates may enable applications of these materials in homogeneous catalysis, medicine, separations, and the development of new functional materials. Postdocs, graduate students and undergraduate students will receive multifaceted training in inorganic materials synthesis and characterization.