| Publication Type |
Journal Article |
| Title |
Ansa-bridged eta-cyclopentadienyl imido and amido derivatives of titanium, zirconium, niobium and molybdenum |
| Authors |
Pedro T. Gomes MLH Green Ana M. Martins P Mountford |
| Groups |
IOARC |
| Journal |
JOURNAL OF ORGANOMETALLIC CHEMISTRY |
| Year |
1997 |
| Month |
August |
| Volume |
541 |
| Number |
1 |
| Pages |
121-125 |
| Abstract |
An improved synthesis of the ligand precursor \[C5H4(SiMe3)](CH2)(3)N(SiMe3)(2)\ is described. It has been used to prepare the ansa compounds \Ti[eta:sigma-C5H4(CH2)(3)N(SiMe3)]Cl-2\, \Ti[eta-C5H4(CH2)(3)(mu-N)]Cl)\(2), \Zr[eta:sigma C5H4(CH2)(3)N(SiMe3)]Cl-2\, \Zr[eta:sigma-C5H4(CH2)(3)N(SiMe3)](SMe2)Cl-2\ and \Mo[eta:sigma-C5H4(CH2)(3)N(SiMe3)](PMe3)Cl-3). Treatment of \Nb[eta:sigma-C5H4(CH2)(3)N]Cl-2\ with MeMgBr gives the dimer \MeNb[eta-C5H4(CH2)(3)(mu-N)(mu-sigma(N):eta(2)-(N,C)-NCH(CH2)(2)-eta -C5H4)]NbMe2\ whose crystal structure has been determined. The new compounds \Nb[eta:sigma-C5H4(CH2)(3)N](eta-C5H5)(sigma-C5H5)\, \Nb[eta:sigma-C5H4(CH2)(3)N](CH2C6H5)(2)\ and Nb[eta:sigma-C5H4(CH2)(3)N][CH2C(CH3)CH2](2)\ have also been prepared. The zirconium compounds together with methylaluminoxane act as catalysts for ethylene and propylene polymerisation. (C) 1997 Elsevier Science S.A. |
| DOI |
http://dx.doi.org/10.1016/S0022-328X(97)00022-3 |
| ISBN |
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| Publisher |
|
| Book Title |
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| ISSN |
0022-328X |
| EISSN |
1872-8561 |
| Conference Name |
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| Bibtex ID |
ISI:A1997YA93500014 |
| Observations |
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