| 163019-08-7

• CAS: 163019-08-7
• 化学式: C₂₆H₅₂Li₂N₂O₄
• 分子量: 470.592
• InChiKey: CXLQTSSLKQHVBM-VWOJYCKBSA-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

• 作为反应物：
  描述：

  、 SmI₂(THF)₂ 以 四氢呋喃 为溶剂， 以63%的产率得到
  参考文献：
  名称：

  mar 1，4-二氮杂-1，3-二烯配合物与酮的反应：通过1,3-偶极环加成反应生成新的多功能三齿配体

  摘要：

  SMI处理2（THF）Ñ与二锂-1,4-二氮杂环己-1,3-二烯（DAD）化合物李2 [（吨丁基）NCH CHN（吨丁基）]（≡Li 2（吨卜-DAD） ; 2）通过在THF中将2 Bu当量的锂还原t Bu-DAD制备，出乎意料地导致形成碘化sa（III）碘化物络合物[（THF）2 Li（t Bu-DAD）] [（THF）Li（t Bu-DAD）] SmI（5）。5的特征结构特征由桥接Sm 3+的两个（Z）-1,4-二氮杂丁-2-烯-1,4-二基单元形成有两个Li +离子。配合物5和类似的氯化物配合物[（THF）Li（t Bu-DAD）] 2 Sm（μ- Cl）2 Li（THF）2（4b）与2当量的二苯甲酮反应，得到结构上非常相似的sa配合物{高产[OC（Ph）2 CH {CH N（t Bu）} N（t Bu）] Li} 2 SmX（THF）（X = Cl（6），I（7））。该反应通过二苯

  DOI：

  10.1021/om010323j

文献信息

• 1,4-Diaza-1,3-diene niobium chlorides: syntheses and X-ray crystal structures of (t-Bu-DAD)NbCl3(THF), (t-Bu-DAD)2NbCl, and [(t-Bu-DAD)NbCl4](H3Nt-Bu)
  作者：Joachim Scholz、Helmar Görls

  DOI：10.1016/s0277-5387(01)00989-5

  日期：2002.2

  The new 1.4-diaza-1.3-diene niobium complexes (t-Bu-DAD)NbCl3(THF) (2) and (t-Bu-DAD)NbCl (3) [t-Bu-DAD=(t-Bu)N=CHCH=N(t-Bu)] have been prepared in 75-82% isolated yields by replacing of two or four chlorine atoms of NbCl, by the sterically demanding t-Bu-DAD ligand. In addition, we also describe the ionic Nb(V) complex [(t-Bu-DAD)NbCl4](H(3)Nt-Bu) (6) which was formed as a byproduct during the preparation of 2. The new compounds have been characterized in solution by NMR measurements as well as by X-ray analyses in solid state. The structural parameters within the t-Bu-DAD ligand of 6 are in agreement with a chelating enediamido dianion. On the other hand the N-C and C-C bond distances of the t-Bu-DAD ligand of 2 are rather comparable to those found in complexes having a radical-anionic t-Bu-DAD ligand. The higher steric crowding at the niobium center caused by two 1,4-diaza-1,3-diene ligands in 3 leads to a significant asymmetric distortion of the 1,3-diaza-2-niobacyclopent-4-ene rings. However, none of the 1.4-diaza-1,3-diene ligands of 2, 3 or 6 is coordinated in the sterically less demanding eta2-C,N bonding mode as found in the binuclear complex (t-Bu-DAD)(5)Nb-2 (4). (C) 2002 Elsevier Science Ltd. All rights reserved.