Issue 32, 2018

Nuclearity effects in supported, single-site Fe(ii) hydrogenation pre-catalysts

Abstract

Dimeric and monomeric supported single-site Fe(II) pre-catalysts on SiO2 have been prepared via organometallic grafting and characterized with advanced spectroscopic techniques. Manipulation of the surface hydroxyl concentration on the support influences monomer/dimer formation. While both pre-catalysts are highly active in liquid-phase hydrogenation, the dimeric pre-catalyst is ∼3× faster than the monomer. Preliminary XAS experiments on the H2-activated samples suggest the active species are isolated Fe(II) sites.

Graphical abstract: Nuclearity effects in supported, single-site Fe(ii) hydrogenation pre-catalysts

Supplementary files

Article information

Article type
Communication
Submitted
03 jul. 2018
Accepted
05 jul. 2018
First published
17 jul. 2018

Dalton Trans., 2018,47, 10842-10846

Author version available

Nuclearity effects in supported, single-site Fe(II) hydrogenation pre-catalysts

R. R. Langeslay, H. Sohn, B. Hu, J. S. Mohar, M. Ferrandon, C. Liu, H. Kim, A. Jeremy Kropf, C. Yang, J. Niklas, O. G. Poluektov, E. Ercan Alp, P. Ignacio-de Leon, A. P. Sattelberger, A. S. Hock and M. Delferro, Dalton Trans., 2018, 47, 10842 DOI: 10.1039/C8DT02720J

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