[1-(SiMe3)C3H4]2Yb(tpyCN) | 909566-83-2

• 英文名称: [1-(SiMe3)C3H4]2Yb(tpyCN)
• 英文别名: [1-(SiMe3)C3H4]2Yb(4'-cyano-2,2':6',2''-terpyridine)
• CAS: 909566-83-2
• 化学式: C₂₈H₃₆N₄Si₂Yb
• 分子量: 657.832
• InChiKey: MYPWPGVNCWVNBH-UHFFFAOYSA-N

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

• 作为产物：
  描述：

  [1-(SiMe3)C3H4]2Yb(THF)2 、 6-(吡啶-2-基)-[2,2'-联吡啶]-4-腈 以 甲苯 为溶剂， 以80%的产率得到[1-(SiMe3)C3H4]2Yb(tpyCN)
  参考文献：
  名称：

  Observation of Internal Electron Transfer in Bulky Allyl Ytterbium Complexes with Substituted Terpyridine Ligands

  摘要：

  A series of new bulky allyl terpyridyl-ytterbium complexes have been synthesized to determine the effect of allyl ligands on the internal charge-transfer process that exists in these materials. Compared to the pentamethylcyclopentadienyl-ytterbocene compound Cp*Yb-2(tpyCN) (nu(C N) = 2172 cm(-1)), the symmetrically substituted allyl complex [1,3-(SiMe3)(2)C3H3](2)Yb(tpyCN) possesses a markedly lowered C N frequency of 2130 cm(-1). Furthermore, the electronic nature of these bulky allyl complexes can be tuned, as demonstrated by the C N frequency of the asymmetric derivatives [1-(SiMe3)C3H4]2Yb(tpyCN) and [1-(SiPh3)-3-(SiMe3)C3H3](2)Yb(tpyCN) (2171 and 2164 cm(-1), respectively). The differences in these frequencies can be attributed to differences in the ligands' steric and electronic character. Single-crystal X-ray characterization of [1,3-(SiMe3)(2)C3H3](2)Yb(tpy) reveals that the allyl moiety possesses shorter Yb-C and Yb-N bond distances than the Cp* analogue. The magnetic susceptibility data for [1,3-(SiMe3)(2)C3H3](2)Yb(tpy) departs dramatically from the Curie law, with a room-temperature magnetic moment of 2.95 mu(B).

  DOI：

  10.1021/ic060603x