Dalton Transactions
Page 8 of 10
the metal surface was evidenced by NMR experiments. Secondly,
in carefully controlled catalytic tests, it was found that for
hydrogenations of 1,3ꢀCYD, STY and LIM the activity of the
RuNP catalysts increases with σꢀdonor ligands such as 1ꢀ
C8H17NH2 and H2O, but decreases with the bulkier and πꢀ
acceptor ligands, PPhH2 PPh2H and CO. These results underline
the pseudoꢀmolecular nature of NPs with sizes under 3 nm since
their activity can be controlled following the σꢀπꢀligand character
as with a homogeneous catalyst.
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France; Université de Toulouse; UPS, INPT; LCC; F-31077 Toulouse,
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