Abstract
The reduction of [(nacnac)MnCl]2 (1) (nacnac = HC(C(Me)N(2.6-i-Pr2C6H3))2) by potassium intercalated graphite KC8 in toluene and benzene is studied. It is established that in both cases, Mn(II) reduces to Mn(I), giving [(nacnac)Mn]2 dimer (2) with the Mn–Mn bond. In addition, solvent interaction products form. In the first case, the product of toluene meta-deprotonation [(nacnac)Mn(m-C6H4CH3)] (3) forms; in the second, the product of benzene reduction [{Mn(nacnac)}2(μ–η4:η4-C6H6)] C6H6 (4) forms. The structures of complexes 3 and 4 are determined by single crystal X-ray diffraction (XRD). A set of crystalline reaction products and their ratio is determined by quantitative powder XRD using the Rietveld method: in the case of toluene, 2, 3, and [(nacnac)MnH]2 are in a 1:1:4 ratio; in the case of benzene, 2, 4·C6H6, and 1 are in a 3:8.5:1 ratio, and also trace amounts of a crystalline phase with an unknown structure.
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The work was supported by the Russian Science Foundation (Grant No. 19-73-00183) and the Ministry of Science and Higher Education of the Russian Federation (Projects Nos. 121031700321-3, 121031700313-8).
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Russian Text © The Author(s), 2021, published in Zhurnal Strukturnoi Khimii, 2021, Vol. 62, No. 10, pp. 1684-1691.https://doi.org/10.26902/JSC_id80783
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Afonin, M.Y., Sedelnikova, A.Y., Konokhova, A.Y. et al. STRUCTURE AND COMPOSITION OF [(nacnac)MnCl]2 (nacnac = HC(C(Me)N(2.6-i-Pr2C6H3))2) PRODUCTS REDUCED BY POTASSIUM-INTERCALATED GRAPHITE IN TOLUENE AND BENZENE. J Struct Chem 62, 1580–1587 (2021). https://doi.org/10.1134/S0022476621100139
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DOI: https://doi.org/10.1134/S0022476621100139