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Platinum(IV) Nitrato Complexes with 1,10-Phenanthroline

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Abstract

The reaction between 1,10-phenanthroline (phen) and a nitric acid solution of platinum was studied. It was shown that, in contrast to the earlier studied reactions with pyridine and piperazine, no solid phases were formed by the salts of anionic platinum(IV) nitrato complexes with the phenanthrolinium cation in this case due to their high solubility. The new molecular platinum(IV) complex containing 1,10-phenanthroline [Pt(phen)(NO3)4] (1) was prepared upon long-term exposure. The salt (phenH)4(NO3)2[Pt(NO3)6] (2) was synthesized by the reaction between phenanthrolinium dinitrate (phen · 2HNO3) and the salt (Bu4N)2[Pt(NO3)6] in acetonitrile with a high yield. The crystal structure of complexes 1 and 2 was characterized by X-ray diffraction. Complex 2 was studied by IR spectroscopy, thermal analysis, and solid-state magic-angle spinning (SS-MAS) 195Pt NMR spectroscopy. The results of this work could be used to develop the synthesis of new platinum complexes and for the preparation of platinum-containing heterogeneous catalysts.

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ACKNOWLEDGMENTS

The authors are grateful to researcher A.P. Zubareva for elemental analysis, senior researcher E.Yu. Filatov for powder X-ray diffraction data, and senior researcher P.E. Plyusnin for thermal analysis.

Funding

This study was financially supported by the Russian Scientific Foundation (project no. 18-73-00054).

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Authors and Affiliations

  1. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    P. A. Topchiyan, I. A. Baidina, I. V. Korolkov, S. V. Tkachev & D. B. Vasilchenko

  2. Novosibirsk National Research State University, 630090, Novosibirsk, Russia

    P. A. Topchiyan

Authors
  1. P. A. Topchiyan
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  2. I. A. Baidina
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  3. I. V. Korolkov
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  4. S. V. Tkachev
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  5. D. B. Vasilchenko
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Corresponding author

Correspondence to P. A. Topchiyan.

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The authors declare that they have no conflict of interests.

ADDITIONAL INFORMATION

This paper is based on the results of the XXII International Chernyaev Conference on the Chemistry, Analysis, and Technology of Platinum Metals (Moscow, 2019, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Russian Technological University).

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Translated by E. Glushachenkova

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Topchiyan, P.A., Baidina, I.A., Korolkov, I.V. et al. Platinum(IV) Nitrato Complexes with 1,10-Phenanthroline. Russ. J. Inorg. Chem. 65, 1552–1557 (2020). https://doi.org/10.1134/S0036023620100216

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  • DOI: https://doi.org/10.1134/S0036023620100216

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