Isolated, well-defined organovanadium(iii) on silica: single-site catalyst for hydrogenation of alkenes and alkynes

H Sohn; J Camacho-Bunquin; R R Langeslay; P A Ignacio-de Leon; J Niklas; O G Poluektov; C Liu; J G Connell; D Yang; J Kropf; H Kim; P C Stair; M Ferrandon; M Delferro

doi:10.1039/c7cc01876b

Isolated, well-defined organovanadium(iii) on silica: single-site catalyst for hydrogenation of alkenes and alkynes

Chem Commun (Camb). 2017 Jun 29;53(53):7325-7328. doi: 10.1039/c7cc01876b.

Authors

H Sohn¹, J Camacho-Bunquin, R R Langeslay, P A Ignacio-de Leon, J Niklas, O G Poluektov, C Liu, J G Connell, D Yang, J Kropf, H Kim, P C Stair, M Ferrandon, M Delferro

Affiliation

¹ Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL 60439, USA. [email protected] [email protected].

PMID: 28492622
DOI: 10.1039/c7cc01876b

Abstract

A well-defined, isolated, single-site organovanadium(iii) catalyst on SiO₂ [(SiO₂)V(Mes)(THF)] was synthesized via surface organometallic chemistry, and fully characterized using a combination of analytical and spectroscopic techniques (EA, ICP, ¹H NMR, TGA-MS, EPR, XPS, DR-UV/Vis, UV-Raman, DRIFTS, XAS). The catalyst exhibits unprecedented reactivity in liquid- and gas-phase alkene/alkyne hydrogenation. Kinetic poisoning experiments revealed that 100% of the V sites are active for hydrogenation.