Fulvene, metallocene catalysts and preparation method thereof, and preparation of polyolefines copolymer using the same
申请人:Park Young-Whan
公开号:US20050004385A1
公开(公告)日:2005-01-06
The present invention relates to a novel fulvene compound and a preparation method thereof, and more particularly to a fulvene compound having substituted groups in the 2- and 5-positions, prepared from an unsaturated ketone having a substituted group in the β-position and a halogen atom in the α-position, and a preparation method thereof. The present invention also relates to a metallocene catalyst having a substituted group in the α-position carbon of the bridge of the cyclopentadienyl group only by reaction of a fulvene compound and an anion group including the cyclopentadienyl group, and a preparation method of a polyolefin copolymer using the same.
Formation and structural properties of salicylaldiminato complexes of zirconium and titanium
作者:Joachim Strauch、Timothy H Warren、Gerhard Erker、Roland Fröhlich、Pauli Saarenketo
DOI:10.1016/s0020-1693(99)00573-3
日期:2000.4
being trans-oriented at zirconium. Complex 8b undergoes an enantiomerization process that is followed by dynamic NMR spectroscopy (ΔG≠enant. (268 K)≈12 kcal mol−1). Titanium tetrachloride forms a neutral 1:2 adduct with 1d. The NMR analysis and X-ray crystal structure analysis of the resulting bisbetaine-type adduct 9d reveals the formation of an octahedral titanium complex that contains two trans-TiO(aryl)
[EN] BORON-BRIDGED 2-INDENYL METALLOCENE COMPLEXES FOR OLEFIN POLYMERIZATION<br/>[FR] COMPLEXES MÉTALLOCÈNES DE 2-INDÉNYLE À PONT DE BORE POUR LA POLYMÉRISATION D'OLÉFINES
申请人:SABIC GLOBAL TECHNOLOGIES BV
公开号:WO2016037960A1
公开(公告)日:2016-03-17
The invention is directed to a metallocene complex selected from the group consisting of 2-indenyl complexes I, II, III and IV, wherein Y is a C1-C20 linear, branched or cyclic hydrocarbyl group, or a C6-C30 aryl or substituted aryl group; L is an electron-donating ligand; A is an element selected from Group 15 or 16 of the Periodic System of the Elements; R is a C1-C30 alkyl, aryl, or substituted aryl group; n is the number of R groups and is an integer from 1 to 3; m is the number of carbon atoms in the hydrocarbyl group between A and B and is an integer from 1 to 4; B is a boron atom; M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements; X is an anionic ligand to M and z is the number of X groups and equals the valence of M minus 2. The invention is also directed to a catalyst comprising a 2-indenyl metallocene complex, a ligand precursor, a process for the preparation of a ligand precursor, a process for the preparation of olefin polymers in the presence of 2-indenyl metallocene complexes, the use of the olefin polymers for making articles and articles comprising an olefin polymer.
[EN] BIS(2-INDENYL) METALLOCENE COMPLEX<br/>[FR] COMPLEXE DE BIS(2-INDÉNYL)-MÉTALLOCÈNE
申请人:SAUDI BASIC IND CORP
公开号:WO2014139949A1
公开(公告)日:2014-09-18
The invention relates to a metallocene complex according to the following formula (1), wherein R1 and R2 are the same or different and are independently selected from the group consisting of substituted and unsubstituted linear and branched hydrocarbyl groups comprising 1 to 30 carbon atoms; M is titanium, zirconium, or hafnium and X1 and X2 are the same and are selected from the group consisting of halogen and hydrocarbyl groups comprising 1 to 20 carbon atoms.
1,1-Olefin-bridged bis-(2-indenyl) metallocenes of titanium and zirconium
作者:Jason G. M. Morton、Haif Al-Shammari、Yunshan Sun、Jiangtao Zhu、Douglas W. Stephan
DOI:10.1039/c4dt01583e
日期:——
Tetrasubstituted alkenes bearing geminal 2-indenyl substituents –9-[bis(1H-inden-2-yl)methylidene]-9H-fluorene (6), 2,2′-(2,2-diphenylethene-1,1-diyl)-bis(1H-indene) (7), and 2,2′-(2-propylpent-1-ene-1,1-diyl)-bis(1H-indene) (8) have been synthesized and metallated to form a newclass of ansa titanium and zirconium metallocene complexes containing a single sp2-hybridized carbon bridge. The synthesis