| 1407168-98-2

• CAS: 1407168-98-2
• 化学式: C₂₀H₃₀Cl₂DyK
• 分子量: 542.962
• InChiKey: OCETXCXZAKBGQZ-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  、 氯丙烯镁 以 四氢呋喃 、 甲苯 为溶剂， 反应 24.0h， 以85%的产率得到(C₅Me₅)_2Dy(η₃-C₃H₅)
  参考文献：
  名称：

  Exchange Coupling and Magnetic Blocking in Bipyrimidyl Radical-Bridged Dilanthanide Complexes

  摘要：

  The synthesis and magnetic properties of three new bipyrimidyl radical bridged dilanthanide complexes, [(Cp*(2)Ln)(2)(mu-bpym(center dot))](+) (Ln = Gd, Tb, Dy), are reported. Strong Ln(III)-bpym(center dot-) exchange coupling is observed for all species, as indicated by the increases in chi T-M at low temperatures. For the (GdI)-I-II-containing complex, a fit to the data reveals antiferromagnetic coupling with J = -10 cm(-1) to give an S = 13/2 ground state. The Tb-III and Dy-III congeners show single-Molecule magnet behavior with relaxation barriers of U-eff = 44(2) and 87.8(3) cm(-1), respectively, a consequence of the large magnetic anisotropies-imparted by these ions. Significantly, the latter Complex exhibits a divergence of the field cooled and zero-field-cooled dc susceptibility data at 6.5 K and magnetic hysteresis below this temperature.

  DOI：

  10.1021/ja308945d
• 作为产物：
  描述：

  potassium pentamethylcyclopentadienide 、 dysprosium(III) chloride 以 四氢呋喃 为溶剂， 反应 24.0h， 以81%的产率得到
  参考文献：
  名称：

  Exchange Coupling and Magnetic Blocking in Bipyrimidyl Radical-Bridged Dilanthanide Complexes

  摘要：

  The synthesis and magnetic properties of three new bipyrimidyl radical bridged dilanthanide complexes, [(Cp*(2)Ln)(2)(mu-bpym(center dot))](+) (Ln = Gd, Tb, Dy), are reported. Strong Ln(III)-bpym(center dot-) exchange coupling is observed for all species, as indicated by the increases in chi T-M at low temperatures. For the (GdI)-I-II-containing complex, a fit to the data reveals antiferromagnetic coupling with J = -10 cm(-1) to give an S = 13/2 ground state. The Tb-III and Dy-III congeners show single-Molecule magnet behavior with relaxation barriers of U-eff = 44(2) and 87.8(3) cm(-1), respectively, a consequence of the large magnetic anisotropies-imparted by these ions. Significantly, the latter Complex exhibits a divergence of the field cooled and zero-field-cooled dc susceptibility data at 6.5 K and magnetic hysteresis below this temperature.

  DOI：

  10.1021/ja308945d

文献信息

• Dysprosium complexes bearing unsupported Dy^III–Ge^II/Sn^IImetal–metal bonds as single-ion magnets
  作者：Shi-Ming Chen、Jin Xiong、Yi-Quan Zhang、Fang Ma、Hao-Ling Sun、Bing-Wu Wang、Song Gao

  DOI：10.1039/c9cc00388f

  日期：——

  Two dysprosium complexes bearing unsupported Dy–Ge/Sn metal–metal bonds are reported here, wherein the Dy–Ge and Dy–Sn bonds both contain relatively large covalency. The complexes exhibit slow relaxation of magnetization at zero field with energy barriers of 485 and 620 K, respectively, and the blocking temperature of 6 K.

  此处报道了两个带有不被支撑的Dy-Ge / Sn金属-金属键的络合物，其中Dy-Ge和Dy-Sn键均具有相对较大的共价键。配合物在零磁场下表现出缓慢的磁化弛豫，分别具有485和620 K的能垒以及6 K的阻断温度。