Enviar artigo por via de e-mail The First Heterometallic Acetate-Bridged Pt(II)–Pd(II) Complex: Synthesis, Structure, and Formation of Bimetallic PtPd2 Nanoparticles
- Autores: Cherkashina N.V.1, Churakov A.V.1, Yakushev I.A.1, Stolyarov I.P.1, Khrustalev V.N.2, Khramov E.V.2,3, Markov A.A.1, Smirnova N.S.1, Zubavichus Y.V.3, Dorovatovskii P.V.3, Dobrokhotova Z.V.1, Ilyukhin A.B.1, Vargaftik M.N.1
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Afiliações:
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Peoples’ Friendship University of Russia
- National Research Center Kurchatov Institute
- Edição: Volume 45, Nº 4 (2019)
- Páginas: 253-265
- Seção: Article
- URL: https://journal-vniispk.ru/1070-3284/article/view/214683
- DOI: https://doi.org/10.1134/S107032841904002X
- ID: 214683
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Resumo
The reaction of platinum acetate blue, empirically described as Pt(OOCMe)2.50, with palladium(II) acetate Pd3(μ-OOCMe)6 gave the first heterometallic acetate-bridged platinum(II) and palladium(II) complex Pd2Pt(μ-OOCMe)6 (I) as co-crystallizates 17Pd2Pt(μ-OOCMe)6 ⋅ 4Pd3(μ-OOCMe)6 ⋅ 42C6H6 (IIa) and 17Pd2Pt(μ-OOCMe)6 ⋅ 4 Pd3(μ-OOCMe)6 (IIb). Single crystal X-ray diffraction (CIF files CCDC nos. 1568105 and 1852744), EXAFS, and quantum chemical studies (DFT and QTAIM) of complex I revealed a slightly distorted triangular structure similar to the structure of palladium(II) acetate Pd3(μ-OOCMe)6 and hypothetical platinum(II) complex Pt3(μ-OOCMe)6. The thermal decomposition of complex IIa gives the bimetallic alloy PtPd2. A combined X-ray diffraction and EXAFS study demonstrated that the obtained material consists of core (Pt)–shell (Pd) particles with an average size of ~28 nm and a minor amount of smaller (~5 nm) PdO nanoparticles on the surface. The obtained results are useful for the understanding of the nature and structure of the supported phase of heterogeneous Pt–Pd catalysts.
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Sobre autores
N. Cherkashina
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
A. Churakov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
I. Yakushev
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
I. Stolyarov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
V. Khrustalev
Peoples’ Friendship University of Russia
Email: wahr36@gmail.com
Rússia, Moscow, 117198
E. Khramov
Peoples’ Friendship University of Russia; National Research Center Kurchatov Institute
Email: wahr36@gmail.com
Rússia, Moscow, 117198; Moscow, 123182
A. Markov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
N. Smirnova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
Ya. Zubavichus
National Research Center Kurchatov Institute
Email: wahr36@gmail.com
Rússia, Moscow, 123182
P. Dorovatovskii
National Research Center Kurchatov Institute
Email: wahr36@gmail.com
Rússia, Moscow, 123182
Zh. Dobrokhotova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
A. Ilyukhin
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Rússia, Moscow, 119991
M. Vargaftik
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Autor responsável pela correspondência
Email: wahr36@gmail.com
Rússia, Moscow, 119991
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