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f‐ block MOFs: A Pathway to Heterometallic Transuranics

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [1];  [1];  [3];  [4];  [1];  [1];  [3];  [5];  [4];  [4];  [1];  [4];  [6];  [4];  [1];  [5];  [3];  [1]
  1. Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
  2. Department of Chemistry Chulalongkorn University Bangkok 10330 Thailand
  3. Department of Materials Science and Engineering University of Florida Gainesville FL 32611 USA
  4. Savannah River National Laboratory Aiken SC 29808 USA
  5. Department of Materials Science and Engineering Clemson University Clemson SC 29634 USA, Center for Nuclear Environmental Engineering Sciences and Radioactive Waste Management (NEESRWM) Clemson University Clemson SC 29634 USA
  6. Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA, Savannah River National Laboratory Aiken SC 29808 USA
Abstract

A novel series of heterometallic f ‐block‐frameworks including the first examples of transuranic heterometallic 238 U/ 239 Pu‐metal–organic frameworks (MOFs) and a novel monometallic 239 Pu‐analog are reported. In combination with theoretical calculations, we probed the kinetics and thermodynamics of heterometallic actinide(An)‐MOF formation and reported the first value of a U‐to‐Th transmetallation rate. We concluded that formation of uranyl species could be a driving force for solid‐state metathesis. Density of states near the Fermi edge, enthalpy of formation, band gap, proton affinity, and thermal/chemical stability were probed as a function of metal ratios. Furthermore, we achieved 97 % of the theoretical maximum capacity for An‐integration. These studies shed light on fundamental aspects of actinide chemistry and also foreshadow avenues for the development of emerging classes of An‐containing materials, including radioisotope thermoelectric generators or metalloradiopharmaceuticals.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0016574
OSTI ID:
1910285
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 5 Vol. 62; ISSN 1433-7851
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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