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Molecules in quarantine

机译:检疫分子

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摘要

Intermediate compounds are often produced during a chemical reaction, but they are too short-lived to be easily observed. It seems that a molecular pyramid can persuade them to stick around for a little longer. The path from starting materials to products in chemical reactions often involves many steps. Intermediate compounds are the resting stages along this path, but they exist in vanish-ingly small concentrations and can rarely be observed. The methods used to see them all require isolation of the intermediates — a sort of quarantine that keeps them from encountering other molecules and so prevents them from continuing along the reaction pathway.
机译:中间化合物通常是在化学反应过程中产生的,但是它们的寿命太短而难以观察。看来,一个分子金字塔可以说服他们停留更长的时间。从原料到化学反应产物的路径通常涉及许多步骤。中间化合物是该途径的静止阶段,但它们的浓度极低,很少被观察到。用来查看它们的所有方法都需要隔离中间体–一种隔离区,可防止它们与其他分子相遇,从而阻止它们沿着反应路径继续进行。

著录项

  • 来源
    《Nature》 |2006年第7119期|p.557|共1页
  • 作者

    Julius Rebek Jr;

  • 作者单位

    Skaggs Institute for Chemical Biology and in the Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

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