Email this article The First Heterometallic Acetate-Bridged Pt(II)–Pd(II) Complex: Synthesis, Structure, and Formation of Bimetallic PtPd2 Nanoparticles
- Authors: 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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Affiliations:
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Peoples’ Friendship University of Russia
- National Research Center Kurchatov Institute
- Issue: Vol 45, No 4 (2019)
- Pages: 253-265
- Section: Article
- URL: https://journals.rcsi.science/1070-3284/article/view/214683
- DOI: https://doi.org/10.1134/S107032841904002X
- ID: 214683
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Abstract
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.
About the authors
N. V. Cherkashina
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
A. V. Churakov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
I. A. Yakushev
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
I. P. Stolyarov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
V. N. Khrustalev
Peoples’ Friendship University of Russia
Email: wahr36@gmail.com
Russian Federation, Moscow, 117198
E. V. Khramov
Peoples’ Friendship University of Russia; National Research Center Kurchatov Institute
Email: wahr36@gmail.com
Russian Federation, Moscow, 117198; Moscow, 123182
A. A. Markov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
N. S. Smirnova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
Ya. V. Zubavichus
National Research Center Kurchatov Institute
Email: wahr36@gmail.com
Russian Federation, Moscow, 123182
P. V. Dorovatovskii
National Research Center Kurchatov Institute
Email: wahr36@gmail.com
Russian Federation, Moscow, 123182
Zh. V. Dobrokhotova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
A. B. Ilyukhin
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
M. N. Vargaftik
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Author for correspondence.
Email: wahr36@gmail.com
Russian Federation, Moscow, 119991
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