期刊
INORGANIC CHEMISTRY
卷 58, 期 6, 页码 3586-3590出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.8b03511
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资金
- Actinide Center of Excellence (U.S. Department of Energy, National Nuclear Security Administration) [DE-NA0003763]
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 metal-organic framework, NU-905, with the formula [Th-6(mu(3)-O)(2)(HCOO)(4)(H2O)(6)(TCPP)(4)] [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), [Th-6(mu(3)-O)(2)(HCOO)(4)(H2O)(6)(TCPP)(4)], 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.
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