Uranyl Ion Coordination by Benzene‐1, 2, 3‐tricarboxylate: Building Chains and Networks from Binuclear Bricks. Issue 3 (20th December 2021)

• Record Type: Journal Article
• Authors: Thuéry, Pierre; Harrowfield, Jack
• Is Part Of: European journal of inorganic chemistry. Volume 2022:Issue 3(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-12-20
• Subjects: Carboxylic acids -- Metal–organic networks -- Structure elucidation -- Tricarboxylate ligands -- Uranyl cation; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.202100917
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: Benzene‐1, 2, 3‐tricarboxylic acid (123btcH3 ) was used to synthesize 7 uranyl ion complexes under hydro‐solvothermal conditions, in the presence of different structure‐directing agents. [Zn(phen)3 ][Zn2 (123btc)(phen)4 ][(UO2 )2 (123btc)2 (OH)(CH3 CN)] ⋅ 3H2 O (1, phen=1, 10‐phenanthroline), the only discrete species in the series, crystallizes as a binuclear, cup‐shaped dimer. Both [PPh3 Me][UO2 (123btc)] (2 ) and [C(NH2 )3 ][UO2 (123btc)] ⋅ 0.5H2 O (3 ) contain anionic, monoperiodic coordination polymers based on quasi‐planar, binuclear (UO2 )2 (123btc)2 2− subunits in which two oxygen atoms of each ligand are uncoordinated. Similar chains are found in [UO2 (123btc)K(18C6)] ⋅ H2 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 UO2 (DMF)2 (H2 O)2 2+ cations in [(UO2 )3 (123btc)2 (DMF)2 (H2 O)2 ] (5 ), while bridging of chains by UO2 (NMP)3 2+ cations in [(UO2 )3 (123btc)2 (NMP)3 ] (6 ) yields a diperiodic network with V2 O5 topology. [NH4 ][UO2 (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. Abstract : Zero‐, mono‐ and diperiodic uranyl ion complexes are formed by benzene‐1, 2, 3‐tricarboxylate, depending on the structure‐directing species used, linear chains based on dimeric motifs being a preferred arrangement.