Cs[8,8′,9,9′,12,12′-Br6-3,3′-Co(1,2-C2B9H8)2] | 84933-24-4

• 英文名称: Cs[8,8′,9,9′,12,12′-Br6-3,3′-Co(1,2-C2B9H8)2]
• 英文别名: Cs[8,8′,9,9′,12,12′-Br₆-3,3′-Co(1,2-C₂B₉H₈)₂]；Cs[commo-3,3'-Co(8,9,12-Br3-3,1,2-CoC2B9H9)2]；caesium 3,3'-commo-bis(8,9,12-tribromooctahydro-1,2-dicarba-3-cobalta-closo-dodecaborate)(1-)
• CAS: 84933-24-4
• 化学式: C₄H₁₆B₁₈Br₆Co*Cs
• 分子量: 930.092
• InChiKey: GROGWDPJWSPMSA-UHFFFAOYSA-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：

  盐酸 、 Cs[8,8′,9,9′,12,12′-Br6-3,3′-Co(1,2-C2B9H8)2] 以 水 为溶剂， 生成 H[8,8′,9,9′,12,12′-Br₆-3,3′-Co(1,2-C₂B₉H₈)₂]
  参考文献：
  名称：

  Controlling the Pirouetting Motion in Rotaxanes by Counterion Exchange

  摘要：

  A fine control of the pirouetting motion of rotaxanes was achieved by using a series of metallabisdicarbollides. The latter were used as anions in the protonated form of benzylic amide macrocycle-containing fumaramide rotaxanes. The present paper discusses the synthesis and the structural and dynamic characterizations of the first examples of anionic boron cluster-containing rotaxanes. To study the dynamic properties of such molecules, the pirouetting rate of the weakly coordinating boron cluster-containing rotaxanes with the more strongly coordinating trifluoroacetate anion (TFA(-)), which would form a close ion pair with the macrocycle, was measured using the exchange spectroscopy NMR technique. Our hypothesis was that the stronger the ion pair the lower the rate of rotation due to the presence of a bigger volume of solvent to be moved. The anion would act as an anchor for the pirouetting motion. Indeed, the results show the expected trend: the rotaxane with the closely coordinating TFA(-) anion pirouettes most slowly, and the most weakly coordinating hexabromoderivative of cobaltabisdicarbollide pirouettes the fastest.

  DOI：

  10.1021/ic501246e

文献信息

• Assessing the mechanism of the synergistic action of calixarenes and Co-dicarbollides in lanthanide extractions
  作者：Elena Macerata、Franca Castiglione、Walter Panzeri、Mario Mariani、Francesco Sansone、Alessandro Casnati、Andrea Mele

  DOI：10.1039/c0nj00269k

  日期：——

  The extraction pathway of lanthanide ions from simulated nuclear waste solutions and the synergistic effects of a calixarene and a cobalt dicarbollide anion (CD) have been investigated on a model system by the combined use of electrospray ionization MS, FTMS ICR, together with 1H and 11B high field NMR spectroscopy techniques. Moreover, the extracting capabilities of the calixarene/BrCD mixture were determined by liquid–liquid extraction tests. An enhanced extraction efficiency of the calixarene/BrCD mixture with respect to the calixarene alone was observed. MS analysis allowed the assessment of a supramolecular ternary association, while the NMR data gave information on the calixarene binding sites for lanthanide ions. Herein, we report the experimental evidence of the formation of a ternary lanthanide/calixarene/Co-dicarbollide aggregate, which allowed us for the first time to assess the mechanism of the synergistic action of calixarenes and CD anions in lanthanide ion extraction.

  通过电喷雾电离质谱、FTMS ICR以及1H和11B高场核磁共振光谱技术的组合使用，在模型系统上研究了镧系离子从模拟核废料溶液中的萃取路径以及杯芳烃和钴二羰基阴离子（CD）的协同效应。此外，通过液-液萃取试验确定了杯芳烃/BrCD混合物的萃取能力。与单独的杯芳烃相比，杯芳烃/BrCD混合物的萃取效率更高。质谱分析可以评估超分子三元结合，而核磁共振数据则提供了有关杯芳烃与镧系离子结合位点的信息。在此，我们报告了三元镧系离子/杯芳烃/钴二羰基阴离子聚合体的形成实验证据，这使我们首次能够评估杯芳烃和CD阴离子在镧系离子萃取中的协同作用机制。
• Xie, Zuowei; Jelínek, Tomáš; Bau, Robert, Journal of the American Chemical Society, 1994, vol. 116, # 5, p. 1907 - 1913
  作者：Xie, Zuowei、Jelínek, Tomáš、Bau, Robert、Reed, Christopher A.

  DOI：——

  日期：——