Preparation of Volatile Heterometallic Precursors for the Synthesis of Mixed-Metal Oxides, Oxyfluorides, Fluorides, and Silicates with Multiferroic Properties

在这个由化学部化学合成项目资助的项目中，奥尔巴尼大学化学系的Dikarev教授将广泛探索异质金属α -二酮酸酯作为混合金属材料合成的单一来源前体。重金属（Ba, Sn, Pb, Bi， RE）与三维过渡金属（Ti/Ni）的特定组合将产生具有有价值的多铁性的材料。这项工作将侧重于挥发性单源前驱体，可用于MOCVD薄膜制备，固体载体沉积，单晶生长和纳米颗粒的形成。它将证明异质金属二酮酸盐是普遍的前体，可以用于制备各种多铁性材料：氧化物、氧氟化物、氟化物和硅酸盐。更广泛的影响包括提高研究生和本科生的教育和研究经验，参与大学和社区活动，如继续发展法医化学项目。这项工作将导致更有效地制备新型多功能材料，称为多铁性材料。该方法的成功开发将对材料化学的其他领域产生影响，这些领域需要合成混合金属化合物，如高温超导体、可充电电池电极和化学传感器。此外，该项目将为学生提供优秀的培训，从本科预科到研究生，包括那些来自历史上在科学领域代表性不足的群体的学生。

In this project funded by the Chemical Synthesis Program of the Chemistry Division, Professor Dikarev of the Department of Chemistry at University at Albany will broadly explore heterometallic alpha-diketonates as single-source precursors for the synthesis of mixed-metal materials. Specific combinations of heavy metals (Ba, Sn, Pb, Bi, RE) with 3d transition metals (Ti/Ni) that result in materials with valuable multiferroic properties will be targeted. This work will focus on volatile single-source precursors that can be used in MOCVD preparation of thin films, deposition on solid support, growth of single crystals, and formation of nanoparticles. It will be demonstrated that heterometallic diketonates are universal precursors that can be explored for the preparation of a wide array of multiferroic materials: oxides, oxyfluorides, fluorides, and silicates. The broader impacts involve an enhancement of the educational and research experiences of graduate and undergraduate students and participation in university wide and community initiatives, such as continuing development of forensic chemistry program. This work will lead to more efficient preparation of new class of multifunctional materials called multiferroics. Successful development of the methodology will have an impact on other areas of materials chemistry in which the synthesis of mixed-metal compounds is needed, such as high-temperature superconductors, rechargeable battery electrodes, and chemical sensors. In addition, this project will provide excellent training of students, from pre-undergraduate to graduate, including those from groups historically underrepresented in the sciences.