Rb2[U(NH2)6], a Rubidium Hexaamidouranate(IV) obtained from the Reaction of UI3 with RbNH2 in Anhydrous Ammonia

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2020-07-31
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
1023-1029
Series
Zeitschrift fur Anorganische und Allgemeine Chemie, Volume 646, issue 14
Abstract
The pyrophoric compound Rb2[U(NH2)6] was obtained as a grey to black powder from the reaction of more than three equivalents of RbNH2 with UI3 in anhydrous liquid ammonia. During the process, UIII is oxidized to UIV and ammonia is reduced under evolution of H2. Rb2[U(NH2)6] crystallizes in the cubic crystal system, space group Fm3m, with the lattice parameter a = 9.7870(12) Å, V = 937.4(2) Å3, Z = 4 at T = 293 K. It is isotypic to K2PtCl6. The compound contains the unprecedented hexaamidouranate(IV) anion [U(NH2)6]2–.
Description
Keywords
Uranium, Amides, Liquid ammonia, Alkali metals, Ammonia reduction
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Citation
Rudel , S S , Karttunen , A J & Kraus , F 2020 , ' Rb 2 [U(NH 2 ) 6 ], a Rubidium Hexaamidouranate(IV) obtained from the Reaction of UI 3 with RbNH 2 in Anhydrous Ammonia ' , Zeitschrift fur Anorganische und Allgemeine Chemie , vol. 646 , no. 14 , pp. 1023-1029 . https://doi.org/10.1002/zaac.202000086