Homogeneous models for mechanisms of surface reactions: Propylene ammoxidation

Conference · Wed Apr 01 00:00:00 EST 1987 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:5297222

Chan, D M.T.; Nugent, W A; Fultz, W C; Rose, D C; Tulip, T H

The proposed active sites on the catalyst surface in heterogeneous propylene ammoxidation have been successfully modelled by structurally characterized pinacolato W(VI) tert-butylimido complexes. These compounds exist as an equilibrating mixture of amine-bis(imido) and imido-bis(amido) complexes, the position of this equilibrium is dependent on the electronic nature of the glycolate ligand. Both of the C-N bond-forming reactions proposed in recent studies by Grasselli et al. (1) have been reproduced using discrete Group VI d{sup 0} organoimido complexes under mild conditions suitable for detailed mechanistic studies. These reactions are: (1) oxidative trapping of radicals at molybdenum imido sites, and (2) migration of the allyl group from oxygen to an imido nitrogen atom.

• OSTI ID: 5297222
• Report Number(s): CONF-8704363-; CODEN: ACPCA
• Journal Information: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA), Vol. 32:1; Conference: American Chemical Society Division of Petroleum Chemistry, Denver, CO (USA), 5-10 Apr 1987; ISSN 0569-3799
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
PROPYLENE
CHEMICAL REACTIONS
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
MATHEMATICAL MODELS
NITROGEN
OXIDATION
OXYGEN
ALKENES
DATA
ELEMENTS
HYDROCARBONS
INFORMATION
KINETICS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
REACTION KINETICS
400201* - Chemical & Physicochemical Properties