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An X-ray Photoelectron Spectroscopy Study of Variations in the Stability of [M(COD)Cl]2 (M = Ir, Rh) Complexes Anchored on Modified Silica in the Spin-Selective Hydrogenation of Unsaturated Hydrocarbons with Parahydrogen Full article

Journal Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Output data Year: 2024, Volume: 65, Number: 2, Pages: 202-210 Pages count : 9 DOI: 10.1134/s0023158423601213
Tags X-ray photoelectron spectroscopy, organometallic iridium complex, organometallic rhodium complex, single-site catalyst, selective hydrogenation
Authors Nartova A.V. 1 , Kvon R.I. 1 , Kovtunova L.M. 1 , Dmitrachkov A.M. 1 , Skovpin I.V. 1,2 , Bukhtiyarov V.I. 1
Affiliations
1 Federal Research Center, Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
2 International Tomography Center, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Funding (1)

1 Russian Science Foundation 19-13-00172-П

Abstract: Changes in the composition of immobilized [M(COD)Cl]2–NH2–C3H6–SiO2 and [M(COD)Cl]2–P(Ph)2–C2H4–SiO2 (where M = Ir, Rh) catalysts in the gas-phase selective hydrogenation of propylene, propyne, and 1,3-butadiene with parahydrogen (p-H2) have been studied by the XPS method. It has been proposed that the M/Cl atomic ratio should be used as an indicator of the structural stability of the anchored complex both at the sample synthesis stage and in the reaction. Based on comparison of XPS data and results of catalytic tests using parahydrogen-induced nuclear polarization, it has been shown that the stability of the anchored {[M(COD)Cl]2–Linker–SiO2} complex during hydrogen activation is a key factor in the catalytic behavior of the systems. The stability of the complex is affected not only by the chosen metal and linker, but also by the nature of the substrate subjected to hydrogenation.
Cite: Nartova A.V. , Kvon R.I. , Kovtunova L.M. , Dmitrachkov A.M. , Skovpin I.V. , Bukhtiyarov V.I.
An X-ray Photoelectron Spectroscopy Study of Variations in the Stability of [M(COD)Cl]2 (M = Ir, Rh) Complexes Anchored on Modified Silica in the Spin-Selective Hydrogenation of Unsaturated Hydrocarbons with Parahydrogen
Kinetics and Catalysis. 2024. V.65. N2. P.202-210. DOI: 10.1134/s0023158423601213 WOS Scopus РИНЦ AN OpenAlex
Original: Нартова А.В. , Квон Р.И. , Ковтунова Л.М. , Дмитрачков А.М. , Сковпин И.В. , Бухтияров В.И.
Исследование методом РФЭС различий в стабильности комплексов [M(COD)Cl]2 (M = Ir, Rh), закрепленных на модифицированном силикагеле в реакциях спин-селективного гидрирования непредельных углеводородов параводородом
Кинетика и катализ. 2024. Т.65. №2. С.214-223. DOI: 10.31857/S0453881124020096 РИНЦ OpenAlex
Dates:
Submitted: Nov 3, 2023
Accepted: Dec 4, 2023
Published print: Apr 1, 2024
Published online: May 9, 2024
Identifiers:
Web of science: WOS:001217617000011
Scopus: 2-s2.0-85192549467
Elibrary: 67308035
Chemical Abstracts: 2024:1043467
OpenAlex: W4396782009
Citing: Пока нет цитирований
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