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Study of catalytic activity on hydrogenation reactions of 1-hexene by RuCl<inf>2</inf>(Py)<inf>4</inf> and RuCl<inf>2</inf>(DMSO)<inf>2</inf>(NC<inf>5</inf>H<inf>4</inf>CO<inf>2</inf>Na)<inf>2</inf> supported on functionalized MCM-48

Abstract:

Two hybrid catalysts were synthesized: (I) from dichlorotetrakis(pyridine)ruthenium(II) [RuCl2(Py)4] and (II) cis-dichlorobis(dimetylsulfoxide)bis(sodiumnicotinate)ruthenium(II) [RuCl2(DMSO)2(NC5H4CO2Na)2] supported on MCM-48 functionalized, using post-synthesis method with [3-(2-aminoethylamino)propyl]trimethoxysilane and triethoxymethylsilane as anchoring and passivation ligands, respectively. The catalysts were characterized using in-frared spectroscopy (FTIR), mass spectrometry (MS), thermogravimetric analysis (TGA-DSC), nitrogen adsorption-desorption, scanning electron microscopy and energy dispersive X-ray analysis (SEM-EDX). Studies of catalytic activity were carried out in hydrogenation reactions and the reactions parameters (time, temperature, substrate/catalyst ratio and H2 pressure) were optimized. Supported complexes are chemiospecific to produce hexane and showed 100% conversion under optimal conditions. Catalysts were reused up to five times with a decrease about 30% of catalytic activity.