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%VBur index and steric maps: from predictive catalysis to machine learning
Sílvia Escayola1,2, Naeimeh Bahri-Laleh3,4, Albert Poater1
1Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Mª Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain. albert.poate@udg.edu.
Steric indices like %VBur quantify molecular bulk, aiding in predicting chemical properties and reactivity. These steric parameters offer advantages over electronic indices in predictive chemistry and catalysis, promoting efficiency and sustainability.
Area of Science:
- Chemistry
- Computational Chemistry
- Chemical Engineering
Background:
- Steric indices describe molecular spatial arrangements, influencing reactivity, stability, and physical properties.
- Steric hindrance and steric bulk are key concepts, with indices like Tolman cone angle and %VBur quantifying these effects.
- Electronic indices, while common, have limitations in computational cost and predictive power compared to steric measures.
Purpose of the Study:
- To highlight the importance of steric indices in understanding chemical behavior.
- To compare the utility of steric indices, particularly %VBur, against electronic indices.
- To emphasize the role of steric indices in advancing predictive chemistry and catalysis for sustainability.
Main Methods:
- Review and discussion of steric indices, including steric hindrance and steric bulk.
- Comparison of steric indices (e.g., %VBur) with electronic indices in chemical property prediction.
- Exploration of the application of steric indices in predictive catalysis.
Main Results:
- Steric indices effectively predict reactivity, stability, and physical properties of chemical compounds.
- %VBur demonstrates advantages over electronic indices in certain predictive applications, potentially due to inherent electronic content.
- Steric indices are crucial for developing efficient and sustainable predictive catalysis.
Conclusions:
- Steric indices are vital tools for predicting chemical compound behavior and designing new molecules.
- %VBur offers a valuable metric for predictive catalysis, enhancing efficiency and sustainability.
- Integrating steric insights into computational methods can minimize waste and experimental effort in chemical research.
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