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Effects of mechanochemical treatment to the vanadium phosphate catalysts derived from VOPO4·2H2O

✍ Scribed by Y.H. Taufiq-Yap; C.K. Goh; G.J. Hutchings; N. Dummer; J.K. Bartley


Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
1018 KB
Volume
260
Category
Article
ISSN
1381-1169

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Electron spin resonance studies of ziegl
✍ A.E. Yildirim 📂 Article 📅 1981 🏛 Elsevier Science 🌐 English ⚖ 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