Hydrogenation of arenes and N-heteroaromatic compounds over

ruthenium nanoparticles on poly(4-vinylpyridine): a versatile catalyst

operating by a substrate-dependent dual site mechanism

Minfeng Fang, Nataliya Machalaba and Roberto A. Sánchez-Delgado

*

Chemistry Department, Brooklyn College and The Graduate Center, The City University

of New York (CUNY), 2900 Bedford Avenue, Brooklyn NY 11210, United States

Scheme S1 TEM sample preparation for the Ru/PVPy catalyst.

Electronic Supplementary Material (ESI) for Dalton TransactionsThis journal is © The Royal Society of Chemistry 2011

0

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0 1 2 3 4 5 6 7 8 9 10

particle diameter /nm

perc

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f par

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average size: 4.9 nm

Fig. S1 Transmission electron micrographs of a used sample of Ru/PVPy with the corresponding size

distribution histogram for Ru nanoparticles.

Electronic Supplementary Material (ESI) for Dalton TransactionsThis journal is © The Royal Society of Chemistry 2011

Fig. S2 Powder XRD diffraction pattern of a used sample of Ru/PVPy after a hydrogenation run (substrate:

quinoline, 150 ºC and 50 bar, in THF).

Electronic Supplementary Material (ESI) for Dalton TransactionsThis journal is © The Royal Society of Chemistry 2011

Fig. S3 C 1s and Ru 3d XPS spectra of a used sample of Ru/PVPy after a hydrogenation run (substrate:

quinoline, 150 ºC and 50 bar, in THF).

Electronic Supplementary Material (ESI) for Dalton TransactionsThis journal is © The Royal Society of Chemistry 2011

Fig. S4 Ru 3p XPS spectra of a used sample of Ru/PVPy after a hydrogenation run (substrate:

quinoline, 150 ºC and 50 bar, in THF): (a)3p1/2; (b)3p3/2.

Electronic Supplementary Material (ESI) for Dalton TransactionsThis journal is © The Royal Society of Chemistry 2011