Osmium(IV) Halide Complexes with Dimethyl Sulfoxide[H(dmso)2][OsX5(dmso-κO)], X=Cl, Br: Synthesis, Structure, and Properties

Two osmium complexes of common formula [H(dmso)2][OsIVХ5(dmso-κO)] 1 (Х=Cl) and 2 (Х=Br) are synthesized via the reaction of H2OsX6 (Х=Cl, Br) with DMSO. The complex 1 crystallized in the orthorhombic space group Pca21. For 2, two orthorhombic polymorphs are found, namely, 2 a in space group Cmcm and 2 b in space group Pbca. Within the [H(dmso)2]+ cations of 1 and 2 a, the cis-configuration of the DMSO moieties has been observed for the first time. The complexes are characterized by a set of spectroscopic (NMR, IR, UV-Vis, EXAFS/XANES) and diffraction (single crystal and powder) techniques. Both complexes 1 and 2 retain their molecular structures in DMSO and acetone solutions, as evidenced by Os L3-edge EXAFS/XANES. 1H NMR spectra of 1 and 2 in DMSO solutions reveal signals of coordinated DMSO. In acetone solutions, signals of the [H(dmso)2]+ cations are observed in addition to those of coordinated neutral DMSO. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Authors
Rudnitskaya O.V. 1 , Dobrokhotova E.V. 1 , Kultyshkina E.K. 1 , Tereshina T.A. 1 , Trigub A.L. 2 , Zubavichus Y.V. 3 , Khrustalev V.N. 1, 4
Journal
ChemistrySelect
Publisher
Wiley-Blackwell
Number of issue
1
Language
English
Pages
330-334
Status
Published
Link
External link
DOI
10.1002/slct.201904109
Volume
5
Year
2020
Organizations
  • 1 Department of Inorganic Chemistry, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay St., 6, Moscow, 117198, Russian Federation
  • 2 National Research Center, “Kurchatov Institute”, Acad. Kurchatov Sq., 1, Moscow, 123182, Russian Federation
  • 3 Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russian Federation
  • 4 Zelinsky Institute of Organic Chemistry RAS, Leninsky Prosp. 47, Moscow, 119991, Russian Federation
Keywords
NMR spectroscopy; Osmium; Polymorphism; Spectrophotometry; Structure elucidation.
Date of creation
10.02.2020
Date of change
10.02.2020
Short link
https://repository.rudn.ru/en/records/article/record/56535/
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