[Tl(OBu(t))]4 | 23336-13-2

• 英文名称: [Tl(OBu(t))]4
• CAS: 23336-13-2
• 化学式: C₁₆H₃₆O₄Tl₄
• 分子量: 1109.99
• InChiKey: UHDFKOILZQTDQS-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  thallium ethoxide 、 叔丁醇 以 甲苯 为溶剂， 以89%的产率得到[Tl(OBu(t))]4
  参考文献：
  名称：

  ^203,205Tl NMR Studies of Crystallographically Characterized Thallium Alkoxides. X-ray Structures of [Tl(OCH₂CMe₃)]₄ and [Tl(OAr)]_∞, Where OAr = OC₆H₃(Me)₂-2,6 and OC₆H₃(CHMe₂)₂-2,6

  摘要：

  [Tl(OCH2Me)]4 (1) was reacted with excess HOR to prepare a series of [Tl(OR)]n, where OR = OCHMe2 (2, n = 4), OCMe3 (3, n = 4), OCH2CMe3 (4, n = 4), OC6H3(Me)2-2,6 (5, n = infinity), and OC6H3(CHMe2)2-2,6 (6, n = infinity). Single-crystal X-ray diffraction experiments revealed that in the solid state the alkoxide-ligated compound 4 adopts a cubane structure, whereas the aryloxide derivatives, 5 and 6, formed polymeric chains. Compounds 1-6 were also characterized by 203,205Tl solution and 205Tl solid-state NMR spectroscopy. In solution it was determined that 1-4 retained the [Tl-O]4 cube structure, whereas the polymeric species 5 and 6 appeared to be fluxional. Variations in the solution and solid-state structures for the [Tl(OR)]4 cubes and polymeric [Tl(OAr)]infinity are influenced by the steric hindrance of the ligand. The acidity of the parent alcohol influences the degree of covalency at the Tl metal center, which is reflected in the 203,205Tl chemical shifts for 1-6.

  DOI：

  10.1021/ic0006192