with kd = 9.2 × 10-6 s-1. The polymerization of 1-hexene by 2a at 0 °C in C6D5Br was found to follow first-order kinetics with a kp = 0.10(1) M-1 s-1. The polymerization is well-behaved up to 10 °C with ΔH⧧ = 10.82 kcal mol-1 and ΔS⧧ = −23.01 cal mol-1 K-1 (at [Hf] = 1 M). Up to 600 equiv of 1-hexene were polymerized by 2a in chlorobenzene to give atactic poly[1-hexene] with the expected Mn values and
的加成[PH 3 C] [B(C 6 ˚F 5)4 ]至[MesNpy]
铪(I-丁基)2(1A ; [MesNpy] 2 - = [H 3 CC(2-C 5 H ^ 4 N) (CH 2 N-2,4,6--ME 3 c ^ 6 ħ 2)2 ] 2 - )的产量[MesNpy]
铪(I-丁基)} [B(C 6 ˚F 5)4 ](2A)定量。化合物2a在0°C下于C 6 D 5中以一阶方式分解。BR与ķ d = 9.2×10 - 6个小号- 1。由
1-己烯的聚合2A在用C 0℃下6 d 5
溴发现遵循一级动力学与ķ p = 0.10(1)M - 1个小号- 1。聚合行为良好的高达10℃,Δ ħ ⧧ = 10.82千卡摩尔- 1和Δ小号⧧ = -23.01 CAL摩尔- 1 ķ - 1(在[HF] = 1 M)。最多可聚合600当量的
1-己烯2a在
氯苯中,得到无规立构的聚[
1-己烯],其预期的M n值和多分散度在1