Dichloromethane as a Selective Modifying Agent To Create a Family of Highly Reactive Chromium Polymerization Sites | Zendy

Nenu Cristina N. | Zendy; Groppo Elena | Zendy; Lamberti Carlo | Zendy; Beale Andrew M. | Zendy; Visser Tom | Zendy; Zecchina Adriano | Zendy; Weckhuysen Bert M. | Zendy

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Dichloromethane as a Selective Modifying Agent To Create a Family of Highly Reactive Chromium Polymerization Sites

Author(s) -

Nenu Cristina N.,

Groppo Elena,

Lamberti Carlo,

Beale Andrew M.,

Visser Tom,

Zecchina Adriano,

Weckhuysen Bert M.

Publication year - 2007

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200602593

Subject(s) - dichloromethane , polymerization , chromium , catalysis , chemistry , remainder , polymer chemistry , fraction (chemistry) , combinatorial chemistry , organic chemistry , polymer , solvent , arithmetic , mathematics

Uniform polymerization sites with high activity can be created by treating a Phillips‐type Cr II /SiO 2 catalyst with CH 2 Cl 2 (as shown schematically in the picture) under well‐defined conditions. A mechanism is proposed in which CH 2 Cl 2 increases the catalytic activity of a small fraction of Cr sites while poisoning the remainder.

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