The First Heterometallic Acetate-Bridged Pt(II)–Pd(II) Complex: Synthesis, Structure, and Formation of Bimetallic PtPd2 Nanoparticles


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

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.

Авторлар туралы

N. Cherkashina

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

A. Churakov

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

I. Yakushev

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

I. Stolyarov

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

V. Khrustalev

Peoples’ Friendship University of Russia

Email: wahr36@gmail.com
Ресей, Moscow, 117198

E. Khramov

Peoples’ Friendship University of Russia; National Research Center Kurchatov Institute

Email: wahr36@gmail.com
Ресей, Moscow, 117198; Moscow, 123182

A. Markov

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

N. Smirnova

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

Ya. Zubavichus

National Research Center Kurchatov Institute

Email: wahr36@gmail.com
Ресей, Moscow, 123182

P. Dorovatovskii

National Research Center Kurchatov Institute

Email: wahr36@gmail.com
Ресей, Moscow, 123182

Zh. Dobrokhotova

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

A. Ilyukhin

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: wahr36@gmail.com
Ресей, Moscow, 119991

M. Vargaftik

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: wahr36@gmail.com
Ресей, Moscow, 119991

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML

© Pleiades Publishing, Ltd., 2019