• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >2-Aminoethanol Extraction as a Method for Purifying Sc3N@C-80 and for Differentiating Classes of Endohedral Fullerenes on the Basis of Reactivity
【24h】

2-Aminoethanol Extraction as a Method for Purifying Sc3N@C-80 and for Differentiating Classes of Endohedral Fullerenes on the Basis of Reactivity

机译：2-氨基乙醇萃取作为一种纯化Sc3N @ C-80和根据反应性区分内六面体富勒烯的方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Extraction with 2-aminoethanol is an inexpensive method for removing empty cage fullerenes from the soluble extract from electric-arc-generated fullerene soot that contains endohedral metallofullerenes of the type Sc3N@C-2n (n=34, 39, 40). Our method of separation exploits the fact that C-60, C-70, and other larger, empty cage fullerenes are more susceptible to nucleophilic attack than endohedral fullerenes and that these adducts can be readily extracted into 2-aminoethanol. This methodology has also been employed to examine the reactivity of the mixture of soluble endohedral fullerenes that result from doping graphite rods used in the Kratschmer-Huffman electric-arc generator with the oxides of Y, Lu, Dy, Tb, and Gd. For example, with Y2O3, we were able to detect by mass spectrometry several new families of endohedral fullerenes, namely Y3C108 to Y3C126, Y3C107 to Y3C125, Y4C128 to Y4C146, that resisted reactivity with 2-aminoethanol more than the empty cage fullerenes and the mono-and dimetallo fullerenes. The discovery of the family Y3C107 to Y3C125 with odd numbers of carbon atoms is remarkable, since fullerene cages must involve even numbers of carbon atoms. The newly discovered families of endohedral fullerenes with the composition M4C2n (M=Y, Lu, Dy, Tb, and Gd) are unusually resistant to reaction with 2-aminoethanol. Additionally, the individual endohedrals, Y3C112 and M3C102 (M= Lu, Dy, Tb and Gd), were remarkably less reactive toward 2-aminoethanol.
机译：用2-氨基乙醇萃取是一种廉价的方法，可从电弧炉产生的富勒烯烟灰的可溶性提取物中除去空笼式富勒烯，该烟灰包含类型为Sc3N @ C-2n的内面金属富勒烯（n = 34、39、40）。我们的分离方法利用了这样一个事实，即C-60，C-70和其他更大的空笼式富勒烯比内面富勒烯更容易受到亲核攻击，并且这些加合物可以很容易地提取到2-氨基乙醇中。该方法学也已用于检查由在Kratschmer-Huffman电弧发生器中使用的石墨棒掺杂Y，Lu，Dy，Tb和Gd氧化物引起的可溶性内面富勒烯混合物的反应性。例如，使用Y2O3，我们能够通过质谱检测到几个新的内面体富勒烯家族，即Y3C108至Y3C126，Y3C107至Y3C125，Y4C128至Y4C146，它们与2-氨基乙醇的抗性比空笼式富勒烯和单-和双金属富勒烯。由于富勒烯笼必须包含偶数个碳原子，因此发现了具有奇数个碳原子的Y3C107至Y3C125家族。新发现的组成为M4C2n（M = Y，Lu，Dy，Tb和Gd）的内表面富勒烯家族异常地抵抗与2-氨基乙醇的反应。另外，单独的内面体Y3C112和M3C102（M = Lu，Dy，Tb和Gd）对2-氨基乙醇的反应性显着降低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号