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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Editor-in-Chief: Qaim, Syed M.

12 Issues per year


IMPACT FACTOR 2017: 1.202

CiteScore 2017: 1.22

SCImago Journal Rank (SJR) 2017: 0.409
Source Normalized Impact per Paper (SNIP) 2017: 0.869

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2193-3405
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Volume 104, Issue 3

Issues

Decomposition studies of group 6 hexacarbonyl complexes. Part 1: Production and decomposition of Mo(CO)6 and W(CO)6

I. Usoltsev
  • University of Bern, 3012 Bern, Switzerland
  • Paul Scherrer Institute, 5232 Villigen, Switzerland
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/ R. Eichler
  • Corresponding author
  • University of Bern, 3012 Bern, Switzerland
  • Paul Scherrer Institute, 5232 Villigen, Switzerland
  • Email
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/ Y. Wang / J. Even
  • University of Bern, 3012 Bern, Switzerland
  • Helmholtz-Institut Mainz, 55099 Mainz, Germany
  • recently at TRIUMF, Vancouver, BC V6T 2A3, Canada
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/ A. Yakushev / H. Haba / M. Asai
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ H. Brand / A. Di Nitto / Ch.E. Düllmann
  • Helmholtz-Institut Mainz, 55099 Mainz, Germany
  • GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
  • Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
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/ F. Fangli / W. Hartmann / M. Huang / E. Jäger / D. Kaji / J. Kanaya / Y. Kaneya
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ J. Khuyagbaatar
  • Helmholtz-Institut Mainz, 55099 Mainz, Germany
  • GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
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/ B. Kindler / J.V. Kratz / J. Krier / Y. Kudou / N. Kurz / B. Lommel / S. Miyashita
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
  • Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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/ K. Morimoto / K. Morita
  • University of Bern, 3012 Bern, Switzerland
  • Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
  • Kyushu University, Higashi-Ku, Fukuoka, 812-8581, Japan
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/ M. Murakami
  • University of Bern, 3012 Bern, Switzerland
  • Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
  • Niigata University, Niigata, Niigata 950-2181, Japan
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/ Y. Nagame
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ H. Nitsche
  • University of Bern, 3012 Bern, Switzerland
  • University of California, Berkeley, CA 94720-1460, USA
  • Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA
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/ K. Ooe
  • University of Bern, 3012 Bern, Switzerland
  • Niigata University, Niigata, Niigata 950-2181, Japan
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/ T.K. Sato
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ M. Schädel
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ J. Steiner / P. Steinegger
  • University of Bern, 3012 Bern, Switzerland
  • Paul Scherrer Institute, 5232 Villigen, Switzerland
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/ T. Sumita / M. Takeyama / K. Tanaka / A. Toyoshima
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ K. Tsukada
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ A. Türler
  • University of Bern, 3012 Bern, Switzerland
  • Paul Scherrer Institute, 5232 Villigen, Switzerland
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/ Y. Wakabayashi / N. Wiehl
  • Helmholtz-Institut Mainz, 55099 Mainz, Germany
  • Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
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/ S. Yamaki / Z. Qin
Published Online: 2015-11-06 | DOI: https://doi.org/10.1515/ract-2015-2445

Abstract

Chemical studies of superheavy elements require fast and efficient techniques, due to short half-lives and low production rates of the investigated nuclides. Here, we advocate for using a tubular flow reactor for assessing the thermal stability of the Sg carbonyl complex – Sg(CO)6. The experimental setup was tested with Mo and W carbonyl complexes, as their properties are established and supported by theoretical predictions. The suggested approach proved to be effective in discriminating between the thermal stabilities of Mo(CO)6 and W(CO)6. Therefore, an experimental verification of the predicted Sg–CO bond dissociation energy seems to be feasible by applying this technique. By investigating the effect of 104,105Mo beta-decay on the formation of 104,105Tc carbonyl complex, we estimated the lower reaction time limit for the metal carbonyl synthesis in the gas phase to be more than 100 ms. We examined further the influence of the wall material of the recoil chamber, the carrier gas composition, the gas flow rate, and the pressure on the production yield of 104Mo(CO)6, so that the future stability tests with Sg(CO)6 can be optimized accordingly.

Keywords: Transition metals; carbonyl complexes; transactinides; group 6; seaborgium; thermal stability

About the article

Accepted: 2015-09-02

Received: 2015-05-22

Published Online: 2015-11-06

Published in Print: 2016-03-28


Citation Information: Radiochimica Acta, Volume 104, Issue 3, Pages 141–151, ISSN (Online) 2193-3405, ISSN (Print) 0033-8230, DOI: https://doi.org/10.1515/ract-2015-2445.

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