Cu42Ge24Na4—A Giant Trimetallic Sesquioxane Cage: Synthesis, Structure, and Catalytic Activity
Full article
| Common |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Catalysts
ISSN: 2073-4344
|
| Output data |
Year: 2018,
Volume: 8,
Number: 10,
Article number
: 484,
Pages count
: 9
DOI:
10.3390/catal8100484
|
| Tags |
alkanes; amides; hydrogen peroxide; multinuclear complexes; iron complexes; metallasiloxanes |
| Authors |
Kulakova Alena N.
1,2
,
Bilyachenko Alexey N.
1,2
,
Khrustalev Victor N.
2,3
,
Zubavichus Yan V.
3
,
Dorovatovskii Pavel V.
3
,
Shul’pina Lidia S.
1
,
Bantreil Xavier
4
,
Lamaty Frédéric
4
,
Shubina Elena S.
1
,
Levitsky Mikhail M.
1
,
Shul’pin Georgiy B.
5,6
|
| Affiliations |
| 1 |
A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences
|
| 2 |
People’s Friendship University of Russia
|
| 3 |
National Research Center “Kurchatov Institute”
|
| 4 |
Institut des Biomolécules Max Mousseron (IBMM) UMR 5247, CNRS, Université de Montpellier, ENSCM, Université de Montpellier
|
| 5 |
Semenov Institute of Chemical Physics, Russian Academy of Sciences
|
| 6 |
Chair of Chemistry and Physics, Plekhanov Russian University of Economics
|
|
Unprecedented germanium-based sesquioxane exhibits an extremely high nuclearity (Cu42Ge24Na4) and unusual encapsulation features. The compound demonstrated a high catalytic activity in the oxidative amidation of alcohols, with cost-effective catalyst loading down to 400 ppm of copper, and in the oxidation of cyclohexane and other alkanes with H2O2 in acetonitrile in the presence of nitric acid. Selectivity parameters and the mode of dependence of initial cyclohexane oxidation rate on initial concentration of the hydrocarbon indicate that the reaction occurs with the participation of hydroxyl radicals and alkyl hydroperoxides are formed as the main primary product. Alcohols have been transformed into the corresponding ketones by the catalytic oxidation with tert-butyl hydroperoxide.