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| Content Provider | Springer Nature Link |
|---|---|
| Author | Bentz, Erika N. Pomilio, Alicia B. Lobayan, Rosana M. |
| Copyright Year | 2014 |
| Abstract | We report a study of the structure of (+)-catechin, which belongs to the family of the flavan-3-ols—one of the five most widely distributed phenolic groups. The biological activities and pharmaceutical utility of these compounds are related to antioxidant activity due to their ability to scavenge free radicals. A breakthrough in the study of the conformational space of this compound, so far absent in the literature, is presented herein. A detailed analysis of the electronic distribution, charge delocalization effects, and stereoelectronic effects is presented following application of the theory of atoms in molecules (AIM) and natural bond orbital analysis. The stability order, and the effects of electron delocalization in the structures were analyzed in depth. The molecular electrostatic potential (MEP) was also obtained, assessing changes in the electronic distribution in aqueous solution, the effects of the solvent on the intrinsic electronic properties, and molecular geometry. The effect of the aqueous solvent on MEP was also quantified, and rationalized by charge delocalization mechanisms, relating them to structural changes and topological properties of the electronic charge density. To further analyze the effects of the aqueous solvent, as well as investigating the molecular and structural properties of these compounds in a biological environment, the polarizabilities for all conformers characterized were also calculated. All results were interpreted on the basis of our accumulated knowledge on (4α→6", 2α→O→1")-phenylflavans in previous reports, thus enriching and deepening the analysis of both types of structure. |
| Starting Page | 1 |
| Ending Page | 13 |
| Page Count | 13 |
| File Format | |
| ISSN | 16102940 |
| Journal | Journal of Molecular Modeling |
| Volume Number | 20 |
| Issue Number | 2 |
| e-ISSN | 09485023 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2014-02-14 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | (+)-Catechin Antioxidants Density functional theory Aqueous solvent effect PCM model Atoms in molecules Natural bond orbital analysis Molecular polarizability Computer Applications in Chemistry Molecular Medicine Computer Application in Life Sciences Characterization and Evaluation of Materials Theoretical and Computational Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Physical and Theoretical Chemistry Computational Theory and Mathematics Catalysis Inorganic Chemistry Computer Science Applications |
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