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A Structurally Characterized Organometallic Plutonium(IV) Complex.

Christos Apostolidis1, Olaf Walter1, Jochen Vogt2

  • 1European Commission, Joint Research Centre, Directorate G-Nuclear Safety and Security, P.O. Box 2340, 76125, Karlsruhe, Germany.

Angewandte Chemie (International Ed. in English)
|April 4, 2017
PubMed
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A novel blood-red plutonocene complex, Pu(1,3-COT

Area of Science:

  • Organometallic Chemistry
  • Actinide Chemistry
  • Coordination Chemistry

Background:

  • Plutonium organometallic chemistry is underexplored due to radioactivity and complex handling.
  • Organoactinides offer unique insights into bonding and electronic structures.

Purpose of the Study:

  • Synthesize and characterize a new organoplutonium complex.
  • Investigate the structural and electronic properties of plutonocenes.
  • Understand the mechanism of silyl group migration in organoplutonium compounds.

Main Methods:

  • Synthesis via oxidation of an anionic plutonocene precursor.
  • X-ray crystallography for structure determination.
  • Computational studies (e.g., DFT) for electronic structure analysis.
Keywords:
X-ray crystallographyplutoniumsandwich complexessilyl group migration

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Main Results:

  • Successfully synthesized the blood-red plutonocene complex Pu(1,3-COT'')(1,4-COT'').
  • Determined the first crystal structure of an organoplutonium(IV) complex, revealing an asymmetric sandwich structure.
  • Computational analysis provided insights into the electronic structure and a potential cause for silyl group migration.

Conclusions:

  • The asymmetric sandwich structure challenges previous assumptions about plutonocene symmetry.
  • The study provides a foundational understanding of organoplutonium(IV) complex structures and reactivity.
  • Electronic structure calculations are crucial for elucidating complex bonding and migration phenomena in actinides.