Ni2[CH3C(O)CHC(O)CH3]4[H2N(t)Bu]2 | 634595-19-0

• 英文名称: Ni2[CH3C(O)CHC(O)CH3]4[H2N(t)Bu]2
• CAS: 634595-19-0
• 化学式: C₂₈H₅₀N₂Ni₂O₈
• 分子量: 660.094
• InChiKey: HWJAWFNGKVJIED-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  [(t)BuNH3][acac] 、 tetraethylammonium tetrabromoniccolate(II) 在 t-BuOK 作用下， 以 叔丁醇 为溶剂， 以40.7%的产率得到Ni2[CH3C(O)CHC(O)CH3]4[H2N(t)Bu]2
  参考文献：
  名称：

  Nickel(II) Complexes Bearing N,O-Chelate Ligands:  Synthesis, Solid-Structure Characterization, and Reactivity toward the Polymerization of Polar Monomer

  摘要：

  Two new moisture- and air-stable bis(beta-ketoamino)nickel(II) complexes Ni[R1C(O)CHC-(NAr)R2](2) (Ar = 2,6-(Pr2C6H3)-Pr-i; R1 = R2 = CH3, 1; R1 = C6H5, R2 = CH3, 2), together with the moderately stable complex Ni-2[CH3C(O)CHC(O)CH3](4)[(H2NBu)-Bu-t](2) (3), which bears a monoanionic 0,O-chelate bidentate beta-diketone and an sp(3)-N atom of (BuNH2)-Bu-t mixed ligands, were synthesized and characterized. The solid-state structures of the complexes have been determined by single-crystal X-ray diffractions. Additionally, these new complexes act as catalyst precursors for methyl methacrylate polymerization after activation with methylaluminoxane (MAO). The polymers obtained by 1 and 2 show broader polydispersity than that obtained by 3. C-13 NMR analyses indicate that these catalytic systems initiate MMA polymerization to yield PMMA with rich syndiotacticity microstructure.

  DOI：

  10.1021/om030292n