2.2.2-Cryptand complexes of neptunium(iii) and plutonium(iii)

Conrad A.P. Goodwin, Sierra R. Ciccone, Samuel Bekoe, Sourav Majumdar, Brian L. Scott, Joseph W. Ziller, Andrew J. Gaunt, Filipp Furche, William J. Evans

Research output: Contribution to journalArticlepeer-review


New coordination environments are reported for Np(iii) and Pu(iii) based on pilot studies of U(iii) in 2.2.2-cryptand (crypt). The U(iii)-in-crypt complex, [U(crypt)I2][I], obtained from the reaction between UI3 and crypt, is treated with Me3SiOTf (OTf = O3SCF3) in benzene to form the [U(crypt)(OTf)2][OTf] complex. Similarly, the isomorphous Np(iii) and Pu(iii) complexes were obtained similarly starting from [AnI3(THF)4]. All three complexes (1-An; An = U, Np, Pu) contain an encapsulated actinide in a THF-soluble complex. Absorption spectroscopy and DFT calculations are consistent with 5f3 U(iii), 5f4 Np(iii), and 5f5 Pu(iii) electron configurations. This journal is

Original languageEnglish
Pages (from-to)997-1000
Number of pages4
JournalChemical Communications
Issue number7
Publication statusPublished - 20 Jan 2022


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