April 26, 2024
Journal Article

Expanding the Transuranic Metal-Organic Framework Portfolio: The Optical Properties of Americium (III) MOF-76

Abstract

Abstract: The synthesis, crystal structure, and solid-state characterization of a new americium containing metal-organic framework, [Am(C9H3O6)(H2O)], MOF-76(Am), is reported. This material is constructed from Am3+ metal centers and 1,3,5-tricarboxylic acid (BTC) ligands, forming a porous three-dimensional framework that is isostructural with several known lanthanide analogs, (e.g., Ce, Nd, and Sm-Lu). The Am3+ ions are seven coordinate and assume a distorted capped trigonal prismatic geometry with C1 symmetry. The Am3+-O bonds were studied via infrared spectroscopy and compared to several MOF-76(Ln3+) analogs, where Ln3+ = Nd3+, Eu3+, Tb3+, and Ho3+. The results suggest the bonds are predominantly ionic and the strengths increase Nd3+-O

Published: April 26, 2024

Citation

Arteaga A.L., A.D. Nicholas, M.A. Sinnwell, B.K. McNamara, E.C. Buck, and R.G. Surbella. 2023. Expanding the Transuranic Metal-Organic Framework Portfolio: The Optical Properties of Americium (III) MOF-76. Inorganic Chemistry 62, no. 51:21036–21043. PNNL-SA-186142. doi:10.1021/acs.inorgchem.3c02742

Research topics

Nuclear Material Science
Chemistry