Journal of Catalysis 360 (2018) 201–212 Contents lists available at ScienceDirect Journal of Catalysis journal homepage: www.elsevier.com/locate/jcat Recyclable rhodium-Cp -heterogenized catalysts for hydrogenation of oleﬁns Fernanda Rosi S. Pederzolli, Silvana I. Wolke, Ricardo Gomes da Rosa Instituto de Química, Universidade Federal do Rio Grande do Sul – UFRGS, Av. Bento Gonçalves, 9500, CEP: 91501-970, CP: 15003, Porto Alegre, RS, Brazil article i nfo abstract Article history: Immobilized catalysts were prepared by mixing the ligand Cp,[C Me (n-propyl-Si(OEt) )], with 5 4 3 Received 12 December 2017 RhCl xH O for subsequent reaction with silica Aerosil 200 (system A) or by copolymerization with 3 2 Revised 29 January 2018 TEOS (system B). Both systems were applied on oleﬁn hydrogenation, showing high activity and robust- Accepted 8 February 2018 5 4 ness, allowing for many recycles (TON = 1.0 10 for system A and 2.0 10 for system B). The charac- Available online 23 February 2018 terization techniques (IR-DRIFTS, C-CPMAS, and TEM) suggest a molecular nature for catalytic species. According to the deuteration experiment, a tetra-hapto-Cp -Rh would be formed on the surface during Keywords: the catalytic runs. Cyclopentadienyl-rhodium complexes 2018 Elsevier Inc. All rights reserved. Heterogenized catalysts Oleﬁns
Journal of Catalysis – Elsevier
Published: Apr 1, 2018
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