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†

H. Sohn,^a J. Camacho-Bunquin,

*^a R. R. Langeslay,

^a P. A. Ignacio-de Leon,^b J. Niklas,

^a O. G. Poluektov,^a C. Liu,^a J. G. Connell,^c D. Yang,^a J. Kropf,^a H. Kim,^ad P. C. Stair,^ad M. Ferrandon^a and M. Delferro

*^a

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* Corresponding authors

^a Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL 60439, USA
E-mail: bunquin@anl.gov, delferro@anl.gov

^b Energy Systems Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL 60439, USA

^c Materials Science Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL 60439, USA

^d Center for Catalysis and Surface Science and Department of Chemistry, Northwestern University, Evanston, IL 60208, USA

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.

This article is part of the themed collection: 2017 Emerging Investigators

Chemical Communications

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

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

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