| 1031723-71-3

• CAS: 1031723-71-3
• 化学式: C₆₇H₈₆Cl₄Fe₂N₆
• 分子量: 1228.97
• InChiKey: DADUJFAUHAGBSZ-WLDAFQSFSA-J

反应信息

• 作为产物：
  描述：

  iron(II) chloride tetrahydrate 、 以 四氢呋喃 为溶剂， 以93.6%的产率得到
  参考文献：
  名称：

  Methylene bridged binuclear bis(imino)pyridyl iron(II) complexes and their use as catalysts together with Al(i-Bu)3 for ethylene polymerization

  摘要：

  Three novel methylene bridged binuclear iron(II) complexes: {[2; 6-R-2-C6H3N = C(CH3)C5H3N(CH3)C = N(3, 5- R-2')-C6H2- CH2-(3, 5- R-2')C6H2N = C(CH3)C5H3N(CH3)C = N(2, 6-R-2)C6H3][FeCl2](2)(R, R' = i-C3H7 (6); R = i-C3H7, R' = CH3 (7); R, R' = CH3 (8))} have been synthesized. Activated by Al(i-Bu)(3), complex 6 shows very poor activity for the polymerization of ethylene at one bar ethylene pressure, whereas, 7 and 8 exhibit much higher activity than mononuclear iron catalysts {[ArN = C(Me)C5H3N-( Me)C = NAr']FeCl2 (Ar, Ar' = 2,6-C6H3-i-Pr (9); Ar = 2,6-C6H3-i-Pr-2, Ar' = 2,6-C6H3-Me-2 (10); Ar, Ar' = 2,6-C6H3-Me-2 (11))}. The molecular weight (M-w) of PE produced by 7 and 8 are in the range 13.2-46.0 x 10(4) and much higher than those produced by mononuclear iron catalysts 9 and 10. GPC results demonstrate that 7 and 8 yield PE with a broad/bimodal molecular weight distribution (MWD). In contrast, 9 and 10 yield PE with relatively narrow and unimodal MWD (4.26 and 3.55). Elevating the temperature and Al/Fe molar ratio will narrow the MWD of PE. (c) 2007 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2007.09.039