| 摘要 |
Transition metal compounds of formula (I), other than 8,8'-biguaiazulene-titanium dichloride, in which M<1> = a Group IIIb, IVb, Vb or VIb transition metal; Y = H, OH, halogen, 1-40C hydrocarbon-containing group or N(R<15>)2 (with R<15> = halogen, 1-10C alkyl or 6-10C aryl); k = (valency of M<1>) minus 2; k = 1 if Y = a butadiene unit; R<1>-R<12> = H, halogen, 1-40C hydrocarbyl, -Si(R<15>)3, -N(R<15>)2, -Si(OR<15>)3, -Si(SR<15>)3 or -P(R<15>)2, or two or more adjacent R groups plus the linking atoms may form a ring system; A = -(Y)n-, -Ä(Q=Q)l(Q)lÜn-, -(Q-Y-Q)n-, -(Q-Y-Y-Q)n-, -(Q-O-Y-O-Q)n-, -(Q)n-, -Ä(Q)l-Z-QÜn- or -ÄQ-Q-Z-Q-Q)n-; n = 1-20; l = 1-20; Z = >NR<15>, >CO, >PR<15>, >P(O)R<15>, >SO, >SO2, O or S; Y = -M<2>R<13>R<14>-; Q = -CR<13>R<14>-; R<13>, R<14> = H, halogen or 1-40C hydrocarbyl, or two R<13> groups or two R<14> groups or one R<13> and one R<14> group plus the linking atoms may form a ring system; M<2> = Si, Ge or Sn. Also claimed is: (i) a process for the production of (I), by reacting a compound (II) with a compound (III) in presence of base, deprotonating the product with a base R<16>M<3> (with R<16> = 1-10C hydrocarbyl; M<3> = Group Ia or IIa metal) and reacting the compound obtained with a compound M<1>Yk+2; (ii) catalysts containing (I) and cocatalysts; (iii) a process for the production of olefin polymers by polymerisation of olefins in presence of this catalyst; (iv) olefin polymers obtained by this process. |
