transition state

简明释义

瞬时状态

英英释义

例句

1.The energy barrier associated with the transition state 过渡态 determines the rate of the reaction.

与 transition state 过渡态 相关的能量障碍决定了反应的速率。

2.In chemical reactions, the transition state 过渡态 represents a high-energy configuration that occurs during the transformation from reactants to products.

在化学反应中，transition state 过渡态 表示在反应物转化为产物的过程中出现的高能量构型。

3.Researchers use computational methods to visualize the transition state 过渡态 of a reaction to predict its feasibility.

研究人员使用计算方法可视化反应的 transition state 过渡态 以预测其可行性。

4.During the reaction, the molecule must reach the transition state 过渡态 before forming the final product.

在反应过程中，分子必须先达到 transition state 过渡态，才能形成最终产物。

5.The concept of transition state 过渡态 is crucial for understanding reaction mechanisms in organic chemistry.

在有机化学中，transition state 过渡态 的概念对于理解反应机制至关重要。

作文

In the field of chemistry, understanding the concept of a transition state is crucial for grasping how chemical reactions occur. A transition state refers to a specific configuration of atoms that occurs during a chemical reaction at the highest energy point along the reaction pathway. This state represents a temporary arrangement of atoms where old bonds are breaking and new bonds are forming, making it a pivotal moment in the transformation of reactants into products. The transition state is often depicted as a peak on a potential energy diagram, illustrating the energy barrier that must be overcome for a reaction to proceed. The significance of the transition state lies in its role in determining the rate of a reaction. According to the transition state theory, the rate of a chemical reaction is directly related to the stability of the transition state. If the transition state is stable and has lower energy, the reaction will proceed more quickly. Conversely, if the transition state is unstable and high in energy, the reaction will be slower. This understanding allows chemists to manipulate conditions such as temperature and pressure to favor the formation of a more stable transition state, thus enhancing reaction rates. Moreover, the concept of the transition state extends beyond chemistry into fields such as biochemistry and pharmacology. In enzyme-catalyzed reactions, for instance, enzymes work by stabilizing the transition state, lowering the activation energy required for the reaction to occur. This stabilization is key to the enzyme's ability to increase the reaction rate, making biological processes more efficient. Understanding how enzymes interact with substrates to form a transition state can lead to the development of new drugs that target specific biochemical pathways. In addition to its applications in science, the idea of a transition state can be metaphorically applied to various life situations. For example, individuals often find themselves in transition states during significant life changes, such as moving to a new city or starting a new job. These periods can be characterized by uncertainty and instability, much like the chemical transition state. However, just as in chemistry, these transition states can also lead to growth and new opportunities. Embracing the challenges and changes of these transition states can ultimately lead to personal development and transformation. In conclusion, the transition state is a fundamental concept in chemistry that plays a vital role in understanding reaction mechanisms and rates. Its implications extend into various scientific fields and even into our daily lives, serving as a reminder that change is often necessary for progress. By studying and applying the principles surrounding the transition state, we can not only enhance our knowledge of chemical processes but also navigate our personal transitions with greater awareness and resilience.

在化学领域，理解“过渡态”的概念对于掌握化学反应的发生至关重要。“过渡态”指的是在化学反应中，反应路径上能量最高点时原子特定的构型。这个状态代表了一种暂时的原子排列，其中旧的化学键正在断裂，而新的化学键正在形成，这使得它成为反应物转变为产物的关键时刻。“过渡态”通常在势能图中被描绘为一个峰，展示了反应需要克服的能量障碍。“过渡态”的重要性在于它在决定反应速率中的作用。根据过渡态理论，化学反应的速率与“过渡态”的稳定性直接相关。如果“过渡态”稳定且能量较低，反应将更快进行。相反，如果“过渡态”不稳定且能量较高，反应将较慢。这一理解使化学家能够操控温度和压力等条件，以促进更稳定的“过渡态”的形成，从而提高反应速率。此外，“过渡态”的概念不仅限于化学，还扩展到生物化学和药理学等领域。例如，在酶催化反应中，酶通过稳定“过渡态”来降低反应所需的活化能。这种稳定性是酶能够提高反应速率的关键，使生物过程更加高效。了解酶如何与底物相互作用以形成“过渡态”可以促进新药的开发，针对特定的生化途径。除了在科学中的应用，“过渡态”的理念还可以隐喻性地应用于各种生活情境。例如，个人在重大生活变化期间常常会发现自己处于“过渡态”中，比如搬到新城市或开始新工作。这些时期可能会伴随着不确定性和不稳定性，就像化学中的“过渡态”一样。然而，就像在化学中一样，这些“过渡态”也可以带来成长和新机会。拥抱这些“过渡态”的挑战和变化，最终可以导致个人的发展和转变。总之，“过渡态”是化学中的基本概念，在理解反应机制和速率方面发挥着重要作用。它的影响不仅延伸到各个科学领域，甚至渗透到我们的日常生活中，提醒我们变化往往是进步所必需的。通过研究和应用围绕“过渡态”的原则，我们不仅可以增强对化学过程的理解，还可以以更大的觉知和韧性来应对个人的过渡。