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関連する概念動画

Predicting Reaction Outcomes02:24

Predicting Reaction Outcomes

11.1K
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,...
11.1K
Classification of Titrimetric Analysis Based on Reaction Types01:01

Classification of Titrimetric Analysis Based on Reaction Types

1.9K
Titrimetric analysis in solution chemistry involves measuring the volume of solutions and is often called volumetric analysis. The standard solution of known concentration in the burette is called the titrant, whereas the solution of unknown concentration in the flask is called the analyte, or titrand. Titrimetric analyses can be classified into four types based on the reactions between the titrant and analyte.
Titrations between an acid and a base lead to neutralization reactions that form...
1.9K
Measuring Reaction Rates03:09

Measuring Reaction Rates

32.2K
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...
32.2K
Chemical Reactions01:19

Chemical Reactions

96.9K
A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
Chemical Reactions Rearrange Atoms into New Substances
A chemical reaction takes starting materials—the reactants—and changes them...
96.9K
Chemical Reactions02:26

Chemical Reactions

13.6K
A balanced chemical equation provides the information of chemical formulas of the reactants and products involved in the chemical change. A reaction’s stoichiometry helps predict how much of the reactant is needed to produce the desired amount of product, or in some cases, how much product will be formed from a specific amount of the reactant.
The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However, in...
13.6K
Predicting Products: SN1 vs. SN202:27

Predicting Products: SN1 vs. SN2

17.4K
Nucleophilic substitution reactions of alkyl halides can proceed via an SN1 or an SN2 mechanism. While in SN2 reactions, the nucleophile attacks the substrate simultaneously as the leaving group departs, in SN1 reactions, the substrate first dissociates to give the carbocation intermediate. Various factors such as the structure of the substrate, the strength of the nucleophile, and the nature of the solvent promote one mechanism over the other.
With increased substitution on the alkyl halide,...
17.4K

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関連する実験動画

Updated: Feb 26, 2026

Applying Cheminformatics to Develop a Structure Searchable Database of Analytical Methods
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Applying Cheminformatics to Develop a Structure Searchable Database of Analytical Methods

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ChemTorch: 化学反応特性予測モデルのベンチマークと開発のための深層学習フレームワーク

Jasper De Landsheere1, Anton Zamyatin1, Johannes Karwounopoulos1

  • 1Institute of Materials Chemistry, TU Wien, Vienna 1060, Austria.

Journal of chemical information and modeling
|February 24, 2026
PubMed
まとめ

ChemTorchは、化学反応モデリングのための新しいオープンソースフレームワークであり、より高速で再現可能な深層学習研究を可能にします。モデル開発とベンチマークを容易にし、構造情報に基づいたモデルが障壁高予測に最適であることを示しています。

背景:

  • 正確な化学反応モデリングは重要ですが、量子力学では計算コストが高くなります。
  • 深層学習はより高速な代替手段を提供しますが、断片化されたソフトウェアエコシステムが進歩を妨げています。
  • 標準化されたツールの欠如により、再現性と公正な比較が妨げられています。

結論:

  • ChemTorchは、化学反応モデリング研究における再現性を高め、公正な比較を容易にします。
キーワード:
深層学習化学反応モデリングベンチマークオープンソース再現性

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Last Updated: Feb 26, 2026

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  • 特に分布外評価の必要性を強調する厳密なベンチマークが不可欠です。
  • 今後の作業には、より広範なコミュニティでの使用のためにChemTorchを拡張し、統一されたベンチマークを開発することが含まれます。