Cationic d[sup 0]/f[sup 0] metallocene catalysts. Properties of binuclear organoborane Lewis acid cocatalysts and weakly coordinating counteranions derived therefrom
Journal Article
·
· Organometallics; (United States)
- Northwestern Univ., Evanston, IL (United States)
Reaction of [sup t]BuCH[sub 2]CH(BCl[sub 2])[sub 2] with LiC[sub 6]F[sub 5] yields the binuclear organo-Lewis acid [sup t]BuCH[sub 2]CH-[B(C[sub 6]F[sub 5])[sub 2]][sub 2], which can be converted with KEt[sub 3]RH, followed by metathesis, into the salt [HN[sup n]Bu[sub 3]][sup 1][[sup t]BuCH[sub 2]CH[B(C[sub 6]F[sub 5])[sub 2]] [sub 2]H][sup [minus]]. Reaction of this salt with Cp[prime]2Th(CH[sub 3])[sub 2] (Cp[prime] = [eta][sup 5]-Me[sub 5]C[sub 5]) yields the cationic metallocene complex Cp[prime][sub 2]ThCH[sub 3][sup +][[sup t]BuCh[sub 2]CH[B(C[sub 6]F[sub 5]]) [sub 2]H][sup [minus]], which is a highly active catalyst for ethylene polymerization and 1-hexene hydrogenation. The THF adduct, Cp[prime][sub 2]Th(CH[sub 3])THF[sup +][[sup t]BuCH[sub 2]CH[B(C[sub 6]F[sub 5]) [sub 2]][sub 2]][sup [minus]], has been characterized by X-ray diffraction. 21 refs., 1 fig.
- DOE Contract Number:
- FG02-86ER13511
- OSTI ID:
- 6768585
- Journal Information:
- Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 13:10; ISSN ORGND7; ISSN 0276-7333
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360600 -- Other Materials
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPLEXES
ADDUCTS
ALKALI METAL COMPOUNDS
ALKENES
BORANES
BORON COMPOUNDS
CATALYSTS
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
ETHYLENE
HEXENES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGENATION
INORGANIC ACIDS
LEWIS ACIDS
LITHIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
POLYMERIZATION
SCATTERING
SYNTHESIS
THORIUM COMPLEXES
X-RAY DIFFRACTION
360600 -- Other Materials
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPLEXES
ADDUCTS
ALKALI METAL COMPOUNDS
ALKENES
BORANES
BORON COMPOUNDS
CATALYSTS
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
ETHYLENE
HEXENES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGENATION
INORGANIC ACIDS
LEWIS ACIDS
LITHIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
POLYMERIZATION
SCATTERING
SYNTHESIS
THORIUM COMPLEXES
X-RAY DIFFRACTION