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The catalytic properties of two nanocluster catalysts with atomically precisely known structures,icosahedral two-shelled Au25(SC2H4Ph) 18 nanospheres and biicosahedral Au25(PPh3) 10(SC2H4Ph) 5Cl2 nanorods,were compared. Their catalytic performance in the two reactions of the selective oxidation of styrene and chemoselective hydrogenation of α,β-unsaturated benzalacetone was investigated. The catalytic activities of icosahedral Au25(SC2H4Ph) 18 nanospheres were superior to those of the bi-icosahedral Au25(PPh3) 10(SC2H4Ph) 5Cl2 nanorods for both reactions. The better catalytic performance of the Au25(SC2H4Ph) 18 nanospheres can be attributed to their unique core-shell(Au13/Au12) geometric structure that has an open exterior atomic shell and to their electronic structure with an electron-rich Au13 core and an electron-deficient Au12 shell.
The catalytic properties of two nanocluster catalysts with atomically precisely known structures, icosahedral two-shelled Au25 (SC2H4Ph) 18 nanospheres and biicosahedral Au25 (PPh3) 10 (SC2H4Ph) 5Cl2 nanorods, were compared. Their catalytic performance in the two reactions of the selective oxidation of styrene and chemoselective hydrogenation of α, β-unsaturated benzalacetone was investigated. The catalytic activities of icosahedral Au25 (SC2H4Ph) 18 nanospheres were superior to those of the bi- icosahedral Au25 (PPh3) 10 (SC2H4Ph) 5Cl2 nanorods for both reactions. better catalytic performance of the Au25 (SC2H4Ph) 18 nanospheres can be attributed to their unique core-shell (Au13 / Au12) geometric structure that has an open exterior atomic shell and to their electronic structure with an electron-rich Au13 core and an electron- deficient Au12 shell.