[Et4N][MeTe(Cr(CO)5)2] | 636563-29-6

• 英文名称: [Et4N][MeTe(Cr(CO)5)2]
• CAS: 636563-29-6
• 化学式: C₈H₂₀N*C₁₁H₃Cr₂O₁₀Te
• 分子量: 656.984
• InChiKey: ABKOSINNQGOPMF-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
  None
• 氢给体数：
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• 氢受体数：
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反应信息

• 作为反应物：
  描述：

  [Et4N][MeTe(Cr(CO)5)2] 、 三氟甲烷磺酸甲酯 以 乙腈 为溶剂， 以62%的产率得到(μ-dimethyltelluride)bis[pentacarbonylchromium(0)]
  参考文献：
  名称：

  Reaction of [Et₄N]₂[Te{Cr(CO)₅}_n] (n = 2, 3) toward Electrophiles:  Reactivity Comparison and Theoretical Calculations

  摘要：

  Reactions of [Et4N](2)[Te{Cr(CO)(5)}(n)] (n = 2, 3) with a series of organic and inorganic electrophiles have been systematically studied and compared. When [Et4N](2) [Te{Cr(CO)(5)}(2)] was protonated with similar to 1.0 equiv of HBF4 in MeCN, the monohydrido Te - Cr complex [Et4N][HTe{Cr(CO)(5)}(2)] ([Et4N][1]) was obtained. However, similar protonation of [Et4N](2)[Te{Cr(CO)(5)}(3)] led to the formation of the decomposition product [Et4N](2)[Te-2{Cr(CO)(5)}(4)]. While methylation of [Et4N](2)[Te{Cr(CO)(5)}(2)] with CF3SO3Me formed mono- and dimethylated products [Et4N][MeTe{Cr(CO)(5)}(2)] and Me2Te{Cr(CO)(5)}(2) (2) stepwise, a similar reaction with [Et4N](2)[Te{Cr(CO)(5)}(3)] produced the monomethylated product [Et4N][MeTe{Cr(CO)(5)}(3)] (3). Further, when [Et4N](2)[Te{Cr(CO)(5)}(n)] (n = 2, 3) was stirred in CH2Cl2 at 0 degrees C, the Cl-functionalized products [Et4N][ClH2CTe{Cr(CO)(5)}(n)] (n = 2, [Et4N][4]; n = 3, [Et4N][5]) were produced, respectively. Similar reactions with CH2Cl2 at room temperature produced corresponding CH2-bridged dimeric products [Et4N](2)[CH2Te2{Cr(CO)(5)}(n)] (n = 4; 6, [Et4N](2)[6]). If the bisbenzyl-containing reagent ClH,C(C6H4)(2)CH2Cl reacted with [Et4N](2)[Te{Cr(CO)(5)}(n)] (n = 2, 3), the corresponding CH2(C6H4)(2)CH2-bridged dimeric complexes [Et4N](2)[H2C(C6H4)(2)CH2Te2{Cr(CO)(5)}(n)] (n = 4, [Et4N](2)[7]; n = 6, [Et4N](2)[8]) were produced. [Et4N](2)[Te{Cr(CO)(5)}(n)] (n = 2, 3) could further react with HgCl2 in THF to give corresponding Hgbridged products [Et4N](2)[HgTe2{Cr(CO)(5)}(n)] (n = 4, [Et4N](2)[9]; n = 6, [Et4N](2)[10]). Complex 9 was found to transform to complex 10 upon its reaction with HgCl2 in THE Interestingly, the novel O-2 activation product [Et4N][OTe{Cr(CO)(5)}(2)] ([Et4N][11]) was observed when [Et4N](2)[Te{Cr(CO)(5)}(2)] was bubbled with O-2 in MeCN. Complexes 1 - 11 were fully characterized by elemental analysis, spectroscopic methods, and/or single-crystal X-ray analysis. The nature of [Te{Cr(CO)(5)}(n)](2-) (n = 2, 3) and the resultant complexes were further investigated by molecular orbital calculations at the B3LYP level of the density functional theory.

  DOI：

  10.1021/om700789a
• 作为产物：
  描述：

  六羰基铬 在 KOH 、 NaOH 作用下， 以 甲醇 、 乙醇 、 乙腈 为溶剂， 生成 [Et4N][MeTe(Cr(CO)5)2]
  参考文献：
  名称：

  羰基铬单碲化物络合物[Et 4 N] 2 [Te {Cr（CO）5 } n ]（n = 2，3）：两个重要的中间体

  摘要：

  首次分离的单碲化物桥联羰基铬络合物[Et 4 N] 2 [Te {Cr（CO）5 } n ]（n = 3，[Et 4 N] 2 [ 1 ]; n = 2，[Et 4在[Et 4 N] Br的存在下，在浓KOH / EtOH溶液中，Te粉末与3当量的Cr（CO）6反应，得到N] 2 [ 2 ]）。根据X射线分析，阴离子1显示出金字塔形的几何形状，其中Te原子键合到三个Cr（CO）5碎片上，而阴离子2呈现出非线性结构，其中Te原子与两个Cr（CO）5部分配合。在Cr（CO）6 / KOH / EtOH溶液存在下，配合物1可以转变为2。相反，在与MeCN中的Cr（CO）6反应后，2可以转化回1。有趣的是，当1在70°C下用NaOH / MeOH溶液处理时，观察到MeOH的新型C-O活化，得到四甲基化产物[Et 4 N] [MeTe {Cr（CO）5 } 2 ]（[ Et 4 N] [ 3 ]）。

  DOI：

  10.1021/om034033+