Synthesis and polymerization properties of substituted ansa-Bis(fluorenylidene) complexes of zirconium

被引：17

作者：

Schertl, P ^{[1
]}

Alt, HG ^{[1
]}

机构：

[1] Univ Bayreuth, Anorgan Chem Lab, D-95440 Bayreuth, Germany

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1999年 / 582卷 / 02期

关键词：

zirconium; fluorenyl; catalysis; ethylene polymerization;

D O I：

10.1016/S0022-328X(99)00074-1

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The steric and electronic influence of various substituents at different positions of the fluorenylidene fragment effects the catalytical properties of the MAO activated bis(fluorenylidene) complexes [C13H8 - nRn-(CH2)(2)-C13H8 - nRn]ZrCl2 (n = 0-2; R = H, alkyl, aryl, -(CH)(4)-, -OCH3). We report the synthesis and characterization of 27 new ansa bis(fluorenylidene) zirconium dichloride complexes and illustrate their application in the homogeneously catalyzed polymerization of ethylene. The obtained results are compared with those of known bis(fluorenyl)complexes.

引用

页码：328 / 337

页数：10

共 41 条

[1] C-2-symmetric bis(fluorenyl) complexes: Four complex models as potential catalysts for the isospecific polymerization of propylene [J].

Alt, HG ;

Zenk, R .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 512 (1-2) :51-60

[2] Syndio-specific polymerization of propylene: 3-, 4-, 3,4- 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) [J].

Alt, HG ;

Zenk, R ;

Milius, W .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 514 (1-2) :257-270

[3] Syndiospecific polymerization of propylene: 2-substituted and 2,7-substituted metallocene complex of the (C(13)H(8-n)R(n)CR(n)(')C5H4)MCl(2) (n=1,2; R=alkoxy, alkyl, hal; R(')=Me, Ph; M=Zr, Hf) [J].

Alt, HG ;

Zenk, R .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 522 (01) :39-54

[4] BRIDGED BIS (FLUORENYL) COMPLEXES OF ZIRCONIUM AND HAFNIUM AS HIGHLY REACTIVE CATALYSTS IN HOMOGENEOUS OLEFIN POLYMERIZATION - MOLECULAR-STRUCTURES OF (C13H9-C2H4-C13H9) AND (ETA(5)ETA(5)-C13H8-C2H4-C13H8)ZRCL2 [J].

ALT, HG ;

MILIUS, W ;

PALACKAL, SJ .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1994, 472 (1-2) :113-118

[5]

ALT HG, 1992, Patent No. 0524624

[6] HALOGEN-FREE SOLUBLE ZIEGLER CATALYSTS FOR POLYMERIZATION OF ETHYLENE - CONTROL OF MOLECULAR-WEIGHT BY CHOICE OF TEMPERATURE [J].

ANDRESEN, A ;

CORDES, HG ;

HERWIG, J ;

KAMINSKY, W ;

MERCK, A ;

MOTTWEILER, R ;

PEIN, J ;

SINN, H ;

VOLLMER, HJ .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1976, 15 (10) :630-632

[7] LIQUID SCINTILLATORS .6. 2-ARYL-DIARYLFLUORENES AND 2,7-DIARYLFLUORENES [J].

BARNETT, MD ;

DAUB, GH ;

HAYES, FN ;

OTT, DG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1959, 81 (17) :4583-4586

[8] A NEW UNDERSTANDING OF THE CO-CATALYTIC ACTIVITY OF ALUMOXANES - THE OPENING OF A BLACK-BOX [J].

BARREN, AR .

MACROMOLECULAR SYMPOSIA, 1995, 97 :15-25

[9] REACTION OF (ETA-5-C13H9)MN(CO)3 WITH ALKYLPHOSPHINES - FORMATION AND ISOLATION OF ETA-1-FLUORENYL COMPLEXES [J].

BIAGIONI, RN ;

LORKOVIC, IM ;

SKELTON, J ;

HARTUNG, JB .

ORGANOMETALLICS, 1990, 9 (03) :547-551

[10] SYNTHESIS AND STRUCTURE OF [ME2C(C5H4)(FLU)ZR(MU-H)CL]2, AN ETA(3)-ETA(5)-BONDED ANSA-METALLOCENE [J].

BOCHMANN, M ;

LANCASTER, SJ ;

HURSTHOUSE, MB ;

MAZID, M .

ORGANOMETALLICS, 1993, 12 (12) :4718-4720

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