Vanadium Oxo Organometallic Species Supported on Silica
for the Selective Non-oxidative Dehydrogenation of Propane

Szeto, Kai C.; Loges, Björn; Merle, Nicolas; Popoff, Nicolas; Quadrelli, Alessandra; Jia, Hongpeng; Berrier, Elise; Mallmann, Aimery De; Delevoye, Laurent; Gauvin, Régis
M.; Taoufik, Mostafa

doi:10.1021/om400795s.s001

Vanadium Oxo Organometallic Species Supported on Silica for the Selective Non-oxidative Dehydrogenation of Propane

journal contribution

posted on 2013-11-11, 00:00 authored by Kai C. Szeto, Björn Loges, Nicolas Merle, Nicolas Popoff, Alessandra Quadrelli, Hongpeng Jia, Elise Berrier, Aimery De Mallmann, Laurent Delevoye, Régis M. Gauvin, Mostafa Taoufik

The molecular complex [V(O)(Mes)₃] (1) reacts with silica partially dehydroxylated at 700 °C (SiO_2‑700) to afford [(SiO)V(O)(Mes)₂] (2) as the major surface species, while a bis-grafted surface species [(SiO)₂V(O)(Mes)] (3) is obtained on SiO_2‑200. These surface species were characterized by DRIFT, Raman, ¹H, ¹³C, and ⁵¹V solid-state NMR, and XAFS spectroscopy and show an activity in the non-oxidative dehydrogenation of propane at 500 °C. The bipodal surface organometallic complex displays a higher selectivity in propylene in comparison to the monopodal species.