Uranyl ion coordination by benzene‐1,2,3‐tricarboxylate: building chains and networks from binuclear bricks - Archive ouverte HAL Access content directly
Journal Articles European Journal of Inorganic Chemistry Year : 2022

Uranyl ion coordination by benzene‐1,2,3‐tricarboxylate: building chains and networks from binuclear bricks

(1) , (2)
1
2

Abstract

Benzene-1,2,3-tricarboxylic acid (123btcH$_3$) was used to synthesize 7 uranyl ion complexes under hydrosolvothermal conditions, in the presence of different structure-directing agents. [Zn(phen)$_3$][Zn$_2$(123btc)(phen)$_4$][(UO$_2$)2(123btc)$_2$(OH)(CH$_3$CN)]$^\cdot$3H$_2$O (1, phen = 1,10-phenanthroline), the only discrete species in the series, crystallizes as a binuclear, cup-shaped dimer. Both [PP$_3$Me][UO$_2$(123btc)] (2) and [C(NH$_2$)$_3$][UO$_2$(123btc)]$^\cdot$0.5H$_2$O (3) contain anionic, monoperiodic coordination polymers based on quasi-planar, binuclear (UO$_2$)$_2$(123btc)$_2$$^{2-}$subunits in which two oxygen atoms of each ligand are uncoordinated. Similar chains are found in [UO$_2$(123btc)K(18C6)]$^\cdot$H$_2$O (4, 18C6 = 18-crown-6), the potassium cations being decorating groups bound to carboxylato and uranyl oxo donors. An analogous decorating role to monoperiodic polymers is played by UO$_2$(DMF)$_2$(H$_2$O)$_2$$^{2+}$ cations in [(UO$_2$)$_3$(123btc)$_2$(DMF)$_2$(H$_2$O)$_2$] (5), while bridging of chains by UO$_2$(NMP)$_3$$^{2+}$ cations in [(UO$-2$)$-3$(123btc)$-2$(NMP)$-3$] (6) yields a diperiodic network with V$_2$O$_5$ topology. [NH$_4$][UO$_2$(123btc)] (7), which does not contain the dimeric subunit found in the other cases, crystallizes as a diperiodic network with sql topology, the layers being associated through hydrogen bonding interactions with the ammonium counterions.
Fichier principal
Vignette du fichier
THuery_EJIC_2021b_V0.pdf (5.21 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

cea-03466872 , version 1 (06-12-2021)

Identifiers

Cite

Pierre Thuéry, Jack Harrowfield. Uranyl ion coordination by benzene‐1,2,3‐tricarboxylate: building chains and networks from binuclear bricks. European Journal of Inorganic Chemistry, 2022, 2022 (3), pp.e2021100917. ⟨10.1002/ejic.202100917⟩. ⟨cea-03466872⟩
26 View
84 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More