NMR (solid state) spectroscopy

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Diaminediphosphineruthenium(II) Interphase Catalysts for the Hydrogenation of α, β-Unsaturated Ketones

Journal Title, Volume, Page: 
Zeitschrift für anorganische und allgemeine Chemie Volume 629, Issue 1, pages 161–171, January 2003
Year of Publication: 
2003
Authors: 
Prof. Dr. Ekkehard Lindner
Tübingen, Institut für Anorganische Chemie der Universität
Samer Al-Gharabli
Tübingen, Institut für Anorganische Chemie der Universität
Ismail Warad
Tübingen, Institut für Anorganische Chemie der Universität
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Hermann A. Mayer
Tübingen, Institut für Anorganische Chemie der Universität
Stefan Steinbrecher
Tübingen, Institut für Angewandte Physik der Universität
Michael Seiler
Stuttgart, Institut für Physikalische Chemie der Universität
Helmut Bertagnolli
Stuttgart, Institut für Physikalische Chemie der Universität
Erich Plies
Tübingen, Institut für Angewandte Physik der Universität
Preferred Abstract (Original): 
The T—silyl functionalized diamine-bis(ether-phosphine)ruthenium(II) complexes 1a(T°) — 1g(T°) (Scheme 1) were sol-gel processed in the presence of different amounts of the co-condensation agents CH3Si(OMe)3(Me—T°) and (MeO)2SiMe—(CH2)6—MeSi(OMe)2(D°—C6—D°) to produce a library of the interphase catalysts X1a — X1c, X2a — X2g, and X3a — X3g. Due to the remarkable electronic and steric effects of the co-ligands on the catalytic activity of such complexes, a series of aliphatic and aromatic diamines was selected. The new polymers were investigated by multinuclear CP/MAS solid-state NMR spectroscopy as well as by EXAFS, EDX, SEM, and BET methods. Selected interphase catalysts show high activities and selectivities in the hydrogenation of trans-4-phenyl-3-butene-2-one.
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