Skip to Main content Skip to Navigation
Journal articles

Counterion-Controlled Formation of an Octanuclear Uranyl Cage with cis-1,2-Cyclohexanedicarboxylate Ligands

Pierre Thuéry 1 Youssef Atoini 2 Jack Harrowfield 2 
1 LCMCE - Laboratoire de Chimie Moléculaire et de Catalyse pour l'Energie (ex LCCEF)
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : $cis$-1,2-Cyclohexanedicarboxylic acid ($c$-chdcH$_2$) was reacted with uranyl nitrate under (solvo-)hydrothermal conditions in the presence of different possible counterions. Two neutral complexes of 1:1 stoichiometry were obtained, [UO$_2$(c-chdc)(DMF)] (1) and [UO$_2$($c$-chdc)(H$_2$O)] (2), which crystallize as two-dimensional coordination polymers and do not include the additional cations present in solution. In contrast, the complex [NH$_4$][PPh$_4$][(UO$_2$)$_8$($c$-chdc) $_9$(H$_2$O)$_6$]·3H$_2$O (3) crystallized in the presence of PPh$_4$Br, ammonium cations being generated $in\ situ$ from acetonitrile hydrolysis. This complex of 8:9 uranium:ligand stoichiometry contains an octanuclear anionic cage of $D_3$ symmetry with a pseudo-cubic arrangement of uranium atoms. The ammonium cation is held within the cage through four hydrogen bonds with uranyl oxo groups directed inwards. This cage complex is luminescent, although with a low quantum yield of 0.06, indicating some potential as a photo-oxidant of included species.
Document type :
Journal articles
Complete list of metadata

Cited literature [35 references]  Display  Hide  Download
Contributor : Serge Palacin Connect in order to contact the contributor
Submitted on : Wednesday, May 16, 2018 - 7:05:38 AM
Last modification on : Tuesday, January 4, 2022 - 5:17:38 AM
Long-term archiving on: : Monday, September 24, 2018 - 8:41:00 PM


Files produced by the author(s)



Pierre Thuéry, Youssef Atoini, Jack Harrowfield. Counterion-Controlled Formation of an Octanuclear Uranyl Cage with cis-1,2-Cyclohexanedicarboxylate Ligands. Inorganic Chemistry, American Chemical Society, In press, 57, pp.6283-6288. ⟨10.1021/acs.inorgchem.8b00147⟩. ⟨cea-01792915⟩



Record views


Files downloads