Chemistry of vinylidene complexes. XXV. Synthesis and reactions of binuclear µ-vinylidene RePt complexes containing phosphite ligands. Spectroscopic, structural and electrochemical study

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1016/j.ica.2020.119463

Ключевые слова: NMR, Platinum, Redox properties, Rhenium, Vinylidene complexes, X-ray diffraction

Аннотация: Reactions of Cp(CO)2Re[dbnd]C[dbnd]CHPh with Pt[P(OR)3]4 (R = Pri, Et, Ph) gave binuclear μ-vinylidene complexes Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OR)3]2. Treatment of the previously synthesized Cp(CO)2Re(μ-C[dbnd]CHPh)Pt(PPh3)2 with triisopropylphosphite or triethylphosphite resulted in a stepwise substitution of PPh3 ligands, leading to the disubstituted Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OR)3]2 and monosubstituted Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OR)3](PPh3) (R = Pri or Et) species, while no triphenylphosphine ligand substitution in the reaction with P(OPh)3 occurs at all. The monosubstituted Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OR)3](PPh3) (R = Pri, Et, Ph) species were also obtained by reacting Cp(CO)2Re[dbnd]C[dbnd]CHPh with mixed-ligand complexes Pt(PPh3)3L (L = P(OPri)3, P(OEt)3, P(OPh)3). Reactions of Cp(CO)2RePt(μ-C[dbnd]CHPh)LL′ (L = L′ = P(OPri)3, P(OEt)3, P(OPh)3; L = P(OPri)3, P(OEt)3, P(OPh)3, L′ = PPh3) with Co2(CO)9 yield tricarbonyl vinylidene species Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OR)3](CO) (R = Pri, Et, Ph). The obtained compounds were characterized by IR and 1H, 13C, 31P NMR spectroscopy. The molecular structures of Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OPri)3]2, Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OPri)3](PPh3) and Cp(CO)2RePt(μ-C[dbnd]CHPh)[P(OPri)3](CO) were determined by X-ray diffraction study. The redox properties of the new complexes and their reactions of chemical oxidation were studied. © 2020 Elsevier B.V.

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Издание

Журнал: Inorganica Chimica Acta

Выпуск журнала: Vol. 505

Номера страниц: 119463

ISSN журнала: 00201693

Издатель: Elsevier S.A.

Авторы

  • Chudin O.S. (Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-24, Krasnoyarsk, 660036, Russian Federation)
  • Verpekin V.V. (Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-24, Krasnoyarsk, 660036, Russian Federation)
  • Kondrasenko A.A. (Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-24, Krasnoyarsk, 660036, Russian Federation)
  • Burmakina G.V. (Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-24, Krasnoyarsk, 660036, Russian Federation)
  • Piryazev D.A. (Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Acad. Lavrentiev Ave., 3, Novosibirsk, 630090, Russian Federation, Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russian Federation)
  • Vasiliev A.D. (Siberian Federal University, Svobodny Prospect, 79, Krasnoyarsk, 660041, Russian Federation, Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-38, Krasnoyarsk, 660036, Russian Federation)
  • Pavlenko N.I. (Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-24, Krasnoyarsk, 660036, Russian Federation)
  • Zimonin D.V. (Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-24, Krasnoyarsk, 660036, Russian Federation)
  • Rubaylo A.I. (Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50-24, Krasnoyarsk, 660036, Russian Federation, Siberian Federal University, Svobodny Prospect, 79, Krasnoyarsk, 660041, Russian Federation)

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