SYNDIO-SPECIFIC POLYMERIZATION OF PROPYLE NE - 3-SUBSTITUTED, 4-SUBSTITUTED, 3,4-SUBSTITUTED AND 4,5-SUBSTITUTED ZIRCONOCENE COMPLEXES OF TYPE (C(13)H(8-N)R(N)CR(2)'C5H4)ZRCL2 (N=1, 2 R EQUALS ALKYL, ARYL R'=ME, PH)

Authors
ALT HG ZENK R MILIUS W
Citation
Hg. Alt et al., SYNDIO-SPECIFIC POLYMERIZATION OF PROPYLE NE - 3-SUBSTITUTED, 4-SUBSTITUTED, 3,4-SUBSTITUTED AND 4,5-SUBSTITUTED ZIRCONOCENE COMPLEXES OF TYPE (C(13)H(8-N)R(N)CR(2)'C5H4)ZRCL2 (N=1, 2 R EQUALS ALKYL, ARYL R'=ME, PH), Journal of organometallic chemistry, 514(1-2), 1996, pp. 257-270
Citations number
48
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Journal of organometallic chemistry → ACNP
ISSN journal
0022328X
Volume
514
Issue
1-2
Year of publication
1996
Pages
257 - 270
Database
ISI
SICI code
0022-328X(1996)514:1-2<257:SPOPN->2.0.ZU;2-A
Abstract
Substituents in the positions 3, 4, 5 and 6 of the fluorenylidene frag ment clearly influence the polymerization behaviour of the syndiospeci fic catalyst systems (C(13)H(8-n)R(n)CR(2)'C5H4)ZrCl2/MAO (n = 1, 2; R = alkyl, aryl; R' = Me, Ph). We report seven new catalyst precursors of this type, including first polymerization results. An X-ray study o f the 4,5-dimethyl derivative 10b explains the reduced activity and st ereospecifity of this catalyst.