Nb(N-2,6-ⁱPr₂C₆H₃)Cl₃(dme) | 170473-86-6

• 英文名称: Nb(N-2,6-ⁱPr₂C₆H₃)Cl₃(dme)
• 英文别名: [Nb(=NC6H3(i)Pr2-2,6)Cl3(DME)]；(DME)NbCl3(N-2,6-iPr2C6H3)；[Nb(NC6H3-2,6-iPr2)Cl3(dme)]
• CAS: 170473-86-6
• 化学式: C₄H₁₀O₂*C₁₂H₁₇Cl₃NNb
• 分子量: 464.661
• InChiKey: HSRMQGWBZHKZHM-UHFFFAOYSA-K

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：

  Nb(N-2,6-ⁱPr₂C₆H₃)Cl₃(dme) 以 正己烷 为溶剂， 生成 Nb(N-2,6-ⁱPr₂C₆H₃)(CH₂SiMe₃)₂[OC(CF₃)₃]
  参考文献：
  名称：

  表现出高催化活性的（亚氨基）铌（V）-亚烷基配合物对环烯烃和内部炔烃的复分解聚合

  摘要：

  The (imido)niobium(V)-alkylidene complexes Nb(CHSiMe3)(NR)[OC(CF3)(3)](PMe3)(2) (R = 2,6-Me2C6H3, 2,6-'Pr2C6H3, 1-adamantyl), which could be isolated from the dialkyl analogues by a-hydrogen elimination in the presence of PMe3, exhibited remarkable catalytic activities for ring-opening metathesis polymerization (ROMP) of norbornene, and the polymerizations proceeded in a living manner. Metathesis polymerizations of (unstrained) disubstituted acetylenes also took place, affording polymers with uniform (narrow) molecular weight distributions.

  DOI：

  10.1021/acs.organomet.6b00560
• 作为产物：
  描述：

  乙二醇二甲醚 、 2,6-二异丙基苯胺 、 五氯化铌 在 吡啶 、 zinc(II) chloride 作用下， 以 二氯甲烷 为溶剂， 反应 18.0h， 以82%的产率得到Nb(N-2,6-ⁱPr₂C₆H₃)Cl₃(dme)
  参考文献：
  名称：

  表现出高催化活性的（亚氨基）铌（V）-亚烷基配合物对环烯烃和内部炔烃的复分解聚合

  摘要：

  The (imido)niobium(V)-alkylidene complexes Nb(CHSiMe3)(NR)[OC(CF3)(3)](PMe3)(2) (R = 2,6-Me2C6H3, 2,6-'Pr2C6H3, 1-adamantyl), which could be isolated from the dialkyl analogues by a-hydrogen elimination in the presence of PMe3, exhibited remarkable catalytic activities for ring-opening metathesis polymerization (ROMP) of norbornene, and the polymerizations proceeded in a living manner. Metathesis polymerizations of (unstrained) disubstituted acetylenes also took place, affording polymers with uniform (narrow) molecular weight distributions.

  DOI：

  10.1021/acs.organomet.6b00560

文献信息

• Halo, Alkyl, Aryl, and Bis(imido) Complexes of Niobium Supported by the β-Diketiminato Ligand
  作者：Neil C. Tomson、John Arnold、Robert G. Bergman

  DOI：10.1021/om1001827

  日期：2010.7.12

  by treatment with B(C6F5)3, affording the Lewis base-free complexes (BDI)Nb(NtBu)X2 (X = Cl, F). Additionally, the Lewis base-free dichlorides of the tBu-imido and Ar-imido (Ar = 2,6-iPr2-C6H3) complexes were obtained following treatment of Nb(NR)Cl3(dme) (R = tBu, Ar) with Li(BDI)(OEt2). The pyridine-coordinated dichloride was alkylated and arylated to form the dimethyl complex (BDI)Nb(NtBu)Me2 (described

  复合物 (BDI)Nb(N t Bu)Cl 2 py (BDI = HC[C(Me)N( 2,6 - i Pr 2 -C 6 H 3 )] 2 ) 以高产率合成用Li(BDI)(OEt 2 )处理Nb(N t Bu)Cl 3 py 2。通过在甲苯中引入 2.0 当量的 Me 3 SnF 来实现氯化物对氟化物的取代，以中等产率提供吡啶配位的二氟化物络合物 (BDI)Nb(N t Bu)F 2 py。通过用 B(C 6 F5 ) 3，提供路易斯无碱配合物(BDI)Nb(N t Bu)X 2 (X = Cl，F)。此外，在处理 Nb(NR)Cl 3 (dme) 后，获得了t Bu-imido 和 Ar-imido (Ar = 2,6 - i Pr 2 -C 6 H 3 ) 配合物的无路易斯碱二氯化物( R = t Bu, Ar) 和 Li(BDI)(OEt 2 )。吡啶配位的二氯化物被烷基化和芳基化以形成二甲基络合物
• Mono-anionic acetophenone imine ligands: synthesis, ortho-lithiation and first examples of group (v) metal complexes
  作者：Abdollah Neshat、Cheryl L. Seambos、John F. Beck、Joseph A. R. Schmidt

  DOI：10.1039/b903836a

  日期：——

  A series of niobium and tantalum imido complexes with mono-anionic ortho-metallated acetophenone imine ligands have been prepared and characterized using NMR spectroscopy, mass spectrometry and elemental analysis. These low symmetry complexes are produced with only one or two structural isomers in all cases and display interesting correlations between the steric bulk of the ligands employed and the isomers formed. Crystal structures of several new niobium and tantalum complexes are presented as confirmation of the connectivity in these structural isomers.

  我们利用核磁共振光谱法、质谱法和元素分析法制备了一系列具有单阴离子正交金属化苯乙酮亚胺配体的铌和钽亚胺配合物，并对其进行了表征。这些低对称性配合物在所有情况下都只有一种或两种结构异构体，并显示出配体的立体结构与所形成的异构体之间有趣的相关性。本文还展示了几种新的铌和钽配合物的晶体结构，以证实这些结构异构体之间的关联性。
• Niobium and Tantalum Tris(methimazolyl)borate Complexes [M(NC₆H₃<i>ⁱ</i>Pr₂-2,6)Cl₂{HB(mt)₃}] (M = Nb, Ta; mt = Methimazolyl)
  作者：Anthony F. Hill、A. David Rae、Matthew K. Smith

  DOI：10.1021/ic051218v

  日期：2005.10.1

  The first early transition metal tris(methimazolyl)borate com-plexes [M(=NR)Cl2HB(mt)3}] (M = Nb, Ta; R = C6H3(i)Pr(2)-2,6; mt = methimazolyl) have been obtained from the reactions of [Nb(=NR)Cl3(DME)] or [Ta(=NR)Cl3(THF)2] (DME = dimethyl ether; THF = tetrahydrofuran) with Na[HB(mt)3] and structurally characterized, illustrating that the HB(mt)3 ligand can indeed be compatible with "hard" metals

  第一个早期过渡金属三（甲基咪唑基）硼酸盐络合物[M（= NR）Cl2 HB（mt）3}]（M = Nb，Ta； R = C6H3（i）Pr（2）-2,6； mt = methimazolyl）是由[Nb（= NR）Cl3（DME）]或[Ta（= NR）Cl3（THF）2]（DME =二甲醚； THF =四氢呋喃）与Na [HB（ mt）3]并在结构上进行了表征，说明HB（mt）3配体确实可以与高氧化态的“硬”金属相容。