| AVS 58th Annual International Symposium and Exhibition | |
| Actinides and Rare Earths Focus Topic | Thursday Sessions |
| Session AC+TF-ThA |
| Session: | The Structure, Properties and Chemistry of Thin Films of Actinides and Rare Earths |
| Presenter: | Amanda Albrecht, University of Notre Dame |
| Authors: | A.J. Albrecht, University of Notre Dame P.C. Burns, University of Notre Dame |
| Correspondent: | Click to Email |
Here we examine the crystal chemistry and structural topologies of Th compounds containing various cations that are coordinated by oxygen atoms in tetrahedral arrangements. We define the structural unit to be the part of the structure that consists of those polyhedra that contain higher valence cations, with an emphasis on their connectivity. In most cases, structures also contain interstitial units that balance the charge of the structural unit. In the compounds under study, which include both new structures and those from the literature, we find structural units ranging from clusters and chains, through sheets, to extended frameworks. The structural units in thorium compounds are of particular interest because they provide insights into the possible structures of compounds consisting of tetravalent transuranium cations, especially Np and Pu.