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Application of a novel gas phase synthesis approach to carbonyl complexes of accelerator-produced 5d transition metals

  • Michael Götz EMAIL logo , Alexander Yakushev , Stefan Götz , Antonio Di Nitto , Christoph E. Düllmann , Masato Asai , Birgit Kindler , Jörg Krier , Bettina Lommel , Yuichiro Nagame , Tetsuya K. Sato , Hayato Suzuki , Tomohiro Tomitsuka , Katsuyuki Tokoi , Atsushi Toyoshima and Kazuaki Tsukada
Published/Copyright: December 22, 2021
Radiochimica Acta
From the journal Radiochimica Acta Volume 110 Issue 2

Abstract

In 2014 the first synthesis of a transactinide carbonyl complex – seaborgium hexacarbonyl – was reported. This was achieved in gas-phase chemical experiments in a beam-free environment behind the recoil separator GARIS. Extending this work to heavier elements requires more efficient techniques to synthesize carbonyl complexes as production rates of transactinide elements drop with increasing atomic number. A novel approach was thus conceived, which retains the benefit of a beam-free environment but avoids the physical preseparation step. The latter reduces the yields for products of asymmetric reactions such as those used for the synthesis of suitable isotopes of Sg, Bh, Hs and Mt. For this a series of experiments with accelerator-produced radioisotopes of the lighter homologues W, Re and Os was carried out at the tandem accelerator of JAEA Tokai, Japan. A newly developed double-chamber system, which allows for a decoupled recoil ion thermalization and chemical complex formation, was used, which avoids the low-efficiency physical preseparation step. Here, we demonstrate the feasibility of this newly developed method using accelerator-produced short-lived radioisotopes of the 5d homologues of the early transactinides.

Keywords: carbonyl complexes; carbonyl complex synthesis; fusion products; in-situ synthesis; short-lived isotopes
Corresponding author: Michael Götz, Department of Chemistry – TRIGA Site, Johannes Gutenberg University Mainz, 55128 Mainz, Germany; GSI Helmholtz Centre for Heavy Ion Research, 64291 Darmstadt, Germany; and Helmholtz Institute Mainz, 55099 Mainz, Germany, E-mail:

Funding source: Japan Atomic Energy Agency 10.13039/501100005118

Funding source: German Federal Ministry for Education and Research 10.13039/501100002347

Award Identifier / Grant number: 05P15UMFNA

Acknowledgment

This work has been partly supported by the Program on the Scientific Cooperation between GSI and JAEA in Research and Development in the Field of Ion Beam Application. We thank the operating staff of the JAEA-Tokai Tandem Accelerator for providing stable beams and the mechanical workshops at the GSI Helmholtzzentrum für Schwerionenforschung for their support.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: We gratefully acknowledge financial support by the Reimei Research Program (Japan Atomic Energy Agency) and the German Federal Ministry for Education and Research under contract 05P15UMFNA.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-03-07
Accepted: 2021-11-27
Published Online: 2021-12-22
Published in Print: 2022-02-23

© 2021 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Application of a novel gas phase synthesis approach to carbonyl complexes of accelerator-produced 5d transition metals
  4. Studies on nucleation and crystal growth kinetics of plutonium(IV) oxalatex
  5. Uranium sorption from waste solutions by Talc Phosphogypsum ferri-silicate synthetic new sorbent
  6. Investigation of Re(VII) diffusion in Tamusu clayrock core by through-diffusion method
  7. Elaboration of composite based on the incorporation of marble particles into polymeric framework for the removal of Co(II) and Eu(III)
  8. Studying the electrical conductivity and mechanical properties of irradiated natural rubber latex/magnetite nanocomposite
  9. Enhancing the physico-mechanical properties of ethylene propylene diene monomer rubber via ץ-radiation in the presence of bi-functional and tri-functional monomers
https://doi.org/10.1515/ract-2021-1028
Keywords for this article
carbonyl complexes; carbonyl complex synthesis; fusion products; in-situ synthesis; short-lived isotopes

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Application of a novel gas phase synthesis approach to carbonyl complexes of accelerator-produced 5d transition metals
  4. Studies on nucleation and crystal growth kinetics of plutonium(IV) oxalatex
  5. Uranium sorption from waste solutions by Talc Phosphogypsum ferri-silicate synthetic new sorbent
  6. Investigation of Re(VII) diffusion in Tamusu clayrock core by through-diffusion method
  7. Elaboration of composite based on the incorporation of marble particles into polymeric framework for the removal of Co(II) and Eu(III)
  8. Studying the electrical conductivity and mechanical properties of irradiated natural rubber latex/magnetite nanocomposite
  9. Enhancing the physico-mechanical properties of ethylene propylene diene monomer rubber via ץ-radiation in the presence of bi-functional and tri-functional monomers
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