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相关概念视频

Predicting Reaction Outcomes02:24

Predicting Reaction Outcomes

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Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
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Reaction Quotient

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The status of a reversible reaction is conveniently assessed by evaluating its reaction quotient (Q). For a reversible reaction described by m A + n B ⇌ x C + y D, the reaction quotient is derived directly from the stoichiometry of the balanced equation as
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Multi-Step Reactions02:31

Multi-Step Reactions

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Chemical reactions often occur in a stepwise fashion involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs. Each of the steps in a reaction mechanism is called an elementary reaction. These...
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Measuring Reaction Rates03:09

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Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
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Support Reactions in Three Dimensions01:27

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Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
Ball and Socket Joint is one of the supports allowing free rotation about any axis. This freedom of rotation is...
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Reaction Mechanisms03:06

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Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
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Updated: Aug 25, 2025

Interactive and Visualized Online Experimentation System for Engineering Education and Research
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一个多目标主动学习平台和响应优化的Web应用程序

Jose Antonio Garrido Torres1, Sii Hong Lau1,2, Pranay Anchuri3

  • 1Department of Chemistry, Princeton University, Princeton, New Jersey08544, United States.

Journal of the American Chemical Society
|October 19, 2022
PubMed
概括
此摘要是机器生成的。

我们开发了一个开源的贝叶斯式优化平台, 这种工具通过超越人为驱动的运动来加速发现, 通过用户友好的网络应用程序使复杂的化学物质可访问.

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科学领域:

  • 化学学
  • 化学工程
  • 计算化学

背景情况:

  • 多目标反应优化对于化学合成至关重要.
  • 传统的优化方法可能耗时且劳动密集.
  • 高通量实验 (HTE) 产生大量数据集,但需要有效的分析.

研究的目的:

  • 开发一个开源的贝叶斯优化平台,用于多目标的反应优化.
  • 为化学家创建一个用户友好的界面,将优化程序整合到实验室实践中.
  • 证明该平台在优化复杂化学反应方面的有效性.

主要方法:

  • 开发一个开源的贝叶斯优化平台.
  • 使用高通量实验 (HTE) 和虚拟选数据.
  • 微调算法组件包括反应编码和替代模型.
  • 用于Ni/光电催化酶选择性交叉电友合反应.

主要成果:

  • 与人类驱动的运动相比,贝叶斯优化器在较少的实验中 (15-24) 确定了优异的反应条件.
  • 该平台成功优化了同时反应产量和反选择性.
  • 取得的结果超过了以往人类驱动的优化工作.

结论:

  • 开发的开源平台为多目标反应优化提供了高效和可访问的解决方案.
  • 图形用户界面 (GUI) 降低了化学家使用高级优化技术的障碍.
  • 这种方法加速了化学发现,并将计算工具整合到常规实验室工作中.