Causes of the different catalytic activity of metallocene dichlorides of subgroups IVB-VIB in the amalgam reduction of carbon monoxide

Journal Article · Mon Aug 10 00:00:00 EDT 1987 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00959351· OSTI ID:5846296

Strelets, V V; Kuzharenko, S V; Tsarev, V N

Vanadocene, generated by the amalgam reduction of Cp/sub 2/VCl/sub 2/ (Cp = eta/sup 5/-C/sub 5/H/sub 5/) in a medium of aprotic solvents (DMFA, THF, dimethylacetamide, DMSO, etc.), containing phenol as a proton donor, effectively catalyzes the reduction of CO by sodium amalgam at approx. 20/sup 0/C and 1 atm with the formation of C/sub 1/-C/sub 4/ hydrocarbons. In this work they studied the catalytic activity of other complexes of metals of subgroups IVB-VIB (M = Ti, Nb, Mo, W) in the amalgam reduction of CO in THF and DMFA medium. Differences in the catalytic activity of metallocene dichlorides of subgroups IVB-VIB in the amalgam reduction of carbon monoxide are due to thermodynamic factors determining the impossibility of amalgam reduction of the catalyst-substrate complex (subgroup IV) and differences in the stability of the corresponding metallocene (subgroups VB and VIB). Amalgam reduction of carbon monoxide, bound in a complex with metallocene, occurs under conditions of transfer of the first electron against the potential gradient.

• Research Organization: Institute of Chemical Physics, Chernogolovka, USSR
• OSTI ID: 5846296
• Journal Information: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 36:2; ISSN BACCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALKALI METAL COMPOUNDS
ALKANES
ALLOYS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPARATIVE EVALUATIONS
COMPLEXES
ELECTRON TRANSFER
ENERGY
HALIDES
HALOGEN COMPOUNDS
HETEROGENEOUS CATALYSIS
HYDROCARBONS
MERCURY ALLOYS
METHANE
MOLYBDENUM CHLORIDES
MOLYBDENUM COMPLEXES
MOLYBDENUM COMPOUNDS
NIOBIUM CHLORIDES
NIOBIUM COMPLEXES
NIOBIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
REDOX POTENTIAL
REDUCTION
REFRACTORY METAL COMPOUNDS
SODIUM COMPOUNDS
SOLVENTS
TITANIUM CHLORIDES
TITANIUM COMPLEXES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CHLORIDES
TUNGSTEN COMPLEXES
TUNGSTEN COMPOUNDS
YIELDS