[Yb(C(SiMe3)2SiMe2CH2)2] | 229649-22-3

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: [Yb(C(SiMe3)2SiMe2CH2)2]
• CAS: 229649-22-3
• 化学式: C₂₀H₅₂Si₆Yb
• 分子量: 634.186
• InChiKey: OEGBCPCAGWCTSY-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  ytterbium(II) iodide 、 (C6H6)2KC(SiMe3)2SiMe2CH2CH2SiMe2(Me3Si)2CK(C6H6)2 以 苯 为溶剂， 以45%的产率得到[Yb(C(SiMe3)2SiMe2CH2)2]
  参考文献：
  名称：

  Attachment of the Bulky Bidentate Ligand C(SiMe₃)₂SiMe₂CH₂CH₂Me₂Si(Me₃Si)₂C to K, Zn, Sn, and Yb. Crystal Structures of L_nMC(SiMe₃)₂SiMe₂CH₂CH₂Me₂Si(Me₃Si)₂CML_n (ML_n = K(C₆H₆)₂, K(THF)₂, SnCl₃, or SnMe₂Cl) and CH₂SiMe₂C(SiMe₃)₂ZnC(SiMe₃)₂SiMe₂CH₂ (THF = Tetrahydrofuran)

  摘要：

  Reaction of the lithate [Li(THF)(4)][CH2SiMe2C(SiMe3)(2)LiC(SiMe3)(2)SiMe2CH2] with (KOBu)-Bu-t in THF has given the organopotassium reagent (THF)(2)KC(SiMe3)(2)SiMe2CH2CH2Me2Si(Me3Si)(2)CK(THF)(2), 8, and reaction of HC(SiMe3)(2)SiMe2CH2CH2Me2Si(Me3Si)(2)CH with KMe in benzene has given the related ether-free species (C6H6)(2)KC(SiMe3)(2)SiMe2CH2CH2Me2Si-(Me3Si)(2)CK(C6H6)(2), 7. The structures of 7 and 8 have been confirmed by X-ray studies which indicate that both compounds show K ... Me contacts in the range 3.3-3.5 Angstrom. The ether-free reagent 7 reacted with YbI2 in benzene to give the cyclic Yb(II) derivative CH2SiMe2(SiMe3)(2)YbC(SiMe3)(2)SiMe2CH2, which was found to be somewhat more stable toward Et2O than the I previously studied Yb{C(SiMe3)(3)}(2). Reaction of the lithate [Li(TMEDA)(2)][CH2SiMe2C(SiMe3)(2)LiC(SiMe3)(2)SiMe2CH2] (2a) with ZnCl2 in THF gave a cyclic compound CH2SiMe2C(SiMe3)(2)ZnC(SiMe3)(2)SiMe2CH2, which is stable toward boiling aqueous THF. An X-ray study shows that the angle at Zn is 170 degrees. In contrast, the reactions of 2a with SnCl4 or Me2SnCl2 gave linear species ClX2SnC(SiMe3)(2)SiMe2CH2CH2Me2Si(Me3Si)(2)CSnX2Cl, X = Cl or Me, the structures of which were confirmed by single-crystal X-ray diffraction studies.

  DOI：

  10.1021/om990084o