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 | Sciact - CRIS-система Института катализа

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 Научная публикация

Журнал

Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210

Вых. Данные

Год: 2024, Том: 65, Номер: 2, Страницы: 202-210 Страниц : 9 DOI: 10.1134/s0023158423601213

Ключевые слова

X-ray photoelectron spectroscopy, organometallic iridium complex, organometallic rhodium complex, single-site catalyst, selective hydrogenation

Авторы

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

Организации

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

Информация о финансировании (1)

Российский научный фонд

19-13-00172-П

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.

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 CAPlus OpenAlex

Поступила в редакцию:	3 нояб. 2023 г.
Принята к публикации:	4 дек. 2023 г.
Опубликована в печати:	1 апр. 2024 г.
Опубликована online:	9 мая 2024 г.

Web of science:	WOS:001217617000011
Scopus:	2-s2.0-85192549467
РИНЦ:	67308035
Chemical Abstracts:	2024:1043467
OpenAlex:	W4396782009

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