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Stabilization of an Unprecedented Hexanuclear Secondary Building Unit in a Thorium-Based Metal–Organic Framework

Journal Article · · Inorganic Chemistry
 [1];  [2];  [2];  [3];  [2];  [2];  [2]
  1. Northwestern Univ., Evanston, IL (United States); University of Notre Dame
  2. Northwestern Univ., Evanston, IL (United States)
  3. Northwestern Univ., Evanston, IL (United States); South China Univ. of Technology (SCUT), Guangzhou (China). School of Chemistry and Chemical Engineering
+ Show Author Affiliations
The crystal structures of thorium clusters are important for understanding the formation and transformation mechanisms of actinide species in solution, which can in turns benefit nuclear waste processing and management. However, stabilizing thorium clusters in aqueous solution is quite challenging because of their fast olation and oxolation reactions. Here, we report a thorium-based meta-organic framework, NU-905, with the formula [Th6(μ3-O)2(HCOO)4(H2O)6] [TCPP = tetrakis(4-carboxyphenyl)porphyrin], synthesized by a solvothermal reaction in N,N-dimethylformamide and water at 120 °C. NU-905 contains a hexanuclear secondary building unit (SBU), [Th6(μ3-O)2(HCOO)4(H2O)6], which has never been reported previously. The SBUs are capped and bridged by the tetratopic linker TCPP to form a three-dimensional network with scu topology. The activated NU-905 exhibits permanent porosity and shows high catalytic activity for the selective photooxidation of a mustard gas simulant.
Research Organization:
Univ. of Notre Dame, Notre Dame, IN (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003763
OSTI ID:
1497854
Journal Information:
Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 6 Vol. 58; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Oligonuclear Actinoid Complexes with Schiff Bases as Ligands—Older Achievements and Recent Progress journal January 2020
A Thorium Metal‐Organic Framework with Outstanding Thermal and Chemical Stability journal April 2019
Mononuclear to Polynuclear U IV Structural Units: Effects of Reaction Conditions on U‐Furoate Phase Formation journal April 2020
From Isolated Molecular Complexes to Extended Networks: Synthesis and Characterization of Thorium Furanmono- and Dicarboxylates: From Isolated Molecular Complexes to Extended Networks: Synthesis and Characterization of Thorium Furanmono- and Dicarboxylates journal July 2020
Tetranuclear oxido-bridged thorium( iv ) clusters obtained using tridentate Schiff bases journal January 2019
A mixed-ligand strategy regulates thorium-based MOFs journal January 2020
Unexpected structural complexity of thorium coordination polymers and polyoxo cluster built from simple formate ligands journal January 2020
Time-controlled synthesis of the 3D coordination polymer U(1,2,3-Hbtc) 2 followed by the formation of molecular poly-oxo cluster {U 14 } containing hemimellitate uranium( iv ) journal January 2019

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