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SYNTHESIS, STRUCTURE, AND PROPERTIES OF THE NEW IRIDIUM(III) NITROSO COMPLEX: [Ir(NO)(AcOH)(AcO)2(NO2)2]

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Abstract

A new iridium(III) nitroso complex [Ir(NO)(AcOH)(AcO)2(NO2)2] is obtained in the interaction of the iridium(III) triaquatrinitro complex with acetic anhydride. The salt structure is analyzed by single crystal X-ray diffraction (XRD). Crystallographic data: a = 14.4207(5) Å, b = 13.4561(4) Å, c = 6.7205(2) Å, space group Pnma, Z = 4, ρcal = 2.508 g/cm3. In the crystal structure, molecules of the complex are on mirror planes, and the coordination polyhedron is a distorted octahedron. In the nitroso ligand, Ir–N and N–O bond lengths are 1.779(9) Å and 1.13(1) Å respectively, and the Ir–N–O angle is 170.2(9)°. The powder XRD analysis shows that the product is single-phase, and the presence of the nitroso group and organic ligands in the composition of the compound is confirmed by IR spectroscopy. The obtained compound is unstable when stored in air and undergoes hydrolysis in contact with moisture. Hydrolysis is accompanied by a loss of the nitroso group and organic ligands.

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Funding

The work was supported by the Ministry of Science and Higher Education of the Russian Federation (project No. 121031700315-2).

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Authors and Affiliations

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

    P. A. Topchiyan, V. Yu. Komarov & D. B. Vasilchenko

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  1. P. A. Topchiyan
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  2. V. Yu. Komarov
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  3. D. B. Vasilchenko
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Correspondence to P. A. Topchiyan.

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Russian Text © The Author(s), 2023, published in Zhurnal Strukturnoi Khimii, 2023, Vol. 64, No. 2, 106060.https://doi.org/10.26902/JSC_id106060

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Topchiyan, P.A., Komarov, V.Y. & Vasilchenko, D.B. SYNTHESIS, STRUCTURE, AND PROPERTIES OF THE NEW IRIDIUM(III) NITROSO COMPLEX: [Ir(NO)(AcOH)(AcO)2(NO2)2]. J Struct Chem 64, 262–269 (2023). https://doi.org/10.1134/S0022476623020105

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