Synthesis, characterization and polymerization potential of ansa-metallocene dichloride complexes of titanium, zirconium and hafnium containing a Si-N-Si bridging unit

被引:21
作者
Alt, HG [1 ]
Fottinger, K [1 ]
Milius, W [1 ]
机构
[1] Univ Bayreuth, Anorgan Chem Lab, D-95440 Bayreuth, Germany
关键词
group IV metal; amino silyl cyclopentadienyl; indenyl; ansa-metallocene dichloride; ethylene polymerization;
D O I
10.1016/S0022-328X(98)00640-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Five new Si-N-Si bridged metallocene dichloride complexes of the type [CpSiMe2N(R)SiMe2-Cp]MCl2 (Cp = C5H4, C9H6; R = alkyl, M = Ti, Zr, Hf) were synthesized using a new type of amine elimination reaction. All complexes were characterized by H-1-, C-13-, N-15- and Si-29-NMR spectroscopy. An X-ray structure analysis was performed for complex [C5H4-SiMe2N(Bu-n)SiMe2-C5H4]HfCl2 (4) (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:109 / 114
页数:6
相关论文
共 22 条
[1]   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
[2]   ansa-metallocene derivatives .33. 2-dimethylamino-substituted bis-indenyl zirconium dichloride complexes with and without a dimethylsilyl bridge: Syntheses, crystal structures and properties in propene polymerization catalysis [J].
Barsties, E ;
Schaible, S ;
Prosenc, MH ;
Rief, U ;
Roll, W ;
Weyand, O ;
Dorer, B ;
Brintzinger, HH .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 520 (1-2) :63-68
[3]   NEW SILYL-SUBSTITUTED CYCLOPENTADIENYL TITANIUM AND ZIRCONIUM COMPLEXES - X-RAY MOLECULAR-STRUCTURES OF [TICL2(MU-(OSIME(2)-ETA(5)-C5H4))](2) AND [ZRCL2(MU-[(ETA(5)-C5H4)SIME(2)OSIME(2)(ETA(5)-C5H4)])] [J].
CIRUELOS, S ;
CUENCA, T ;
GOMEZSAL, P ;
MANZANERO, A ;
ROYO, P .
ORGANOMETALLICS, 1995, 14 (01) :177-185
[4]  
CRAM DJ, 1965, FUNDAMENTALS CARBANI, P19
[5]   SYNTHESIS OF TITANOCENE DERIVATIVES OF TETRAMETHYLDISILOXANE AND POLY(METHYLSILOXANE) AND THE MOLECULAR-STRUCTURE OF THE DISILOXANE-BRIDGED TITANOCENE DICHLORIDE (1,3-BIS(ETA-5-CYCLOPENTADIENYL)-1,1,3,3-TETRAMETHYLDISILOXANE)-TITANIUM(IV) DICHLORIDE [J].
CURTIS, MD ;
DERRICO, JJ ;
DUFFY, DN ;
EPSTEIN, PS ;
BELL, LG .
ORGANOMETALLICS, 1983, 2 (12) :1808-1814
[6]   ORGANOMETALLIC ELECTROCHEMISTRY .2. CARBANION STABILITIES [J].
DESSY, RE ;
KITCHING, W ;
PSARRAS, T ;
SALINGER, R ;
CHEN, A ;
CHIVERS, T .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1966, 88 (03) :460-&
[7]   SYNDIOSPECIFIC PROPYLENE POLYMERIZATIONS WITH GROUP-4 METALLOCENES [J].
EWEN, JA ;
JONES, RL ;
RAZAVI, A ;
FERRARA, JD .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1988, 110 (18) :6255-6256
[8]   CHIRAL C-1-SYMMETRICAL GROUP-4 METALLOCENES AS CATALYSTS FOR STEREOREGULAR ALPHA-OLEFIN POLYMERIZATION - METAL, ANCILLARY LIGAND, AND COUNTERANION EFFECTS [J].
GIARDELLO, MA ;
EISEN, MS ;
STERN, CL ;
MARKS, TJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (49) :12114-12129
[9]   SYNTHESIS AND APPLICATIONS OF CHIRAL CYCLOPENTADIENYLMETAL COMPLEXES [J].
HALTERMAN, RL .
CHEMICAL REVIEWS, 1992, 92 (05) :965-994
[10]   Tin-bridged ansa-metallocenes of zirconium: Synthesis and catalytic performance in olefin polymerization [J].
Herrmann, WA ;
Morawietz, MJA ;
Herrmann, HF ;
Kuber, F .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 509 (01) :115-117