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Electron spin resonance studies of Ziegler-type catalysts. 3. The complex derived from dichlorobis(.eta.-cyclopentadienyl)vanadium and diethylaluminum chloride

โœ Scribed by Evans, Alwyn G.; Evans, Jeffrey C.; Mortimer, Jonathan

Book ID
126423981
Publisher
American Chemical Society
Year
1979
Tongue
English
Weight
333 KB
Volume
101
Category
Article
ISSN
0002-7863

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Electron spin resonance studies of ziegler-natta-type catalysts. The complex derived from dichlorobis (ฮท-cyclopentadienyl) vanadium (Cp2VCl2) with ethylaluminium sesquichloride to polymerize ethylene
โœ A.E. Yildirim ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 323 KB

The reaction between CpzVCI2 (Cp = v/-cyclopentadienyl) in CH2C12 and Et3AI2Ct 3 or Et2AICI in n-heptane yields three paramagentic species giving the ESR parameters a~ = 4.11 mT, g = 1.991 (I); a~ = 7.46 mT, g = 1.982 (II); a~ = 7.398 mT, g = 1.985 (II1). Ethylene was polymerized using these catalys