Repository logo
 

Research data supporting 'Reaction dynamics as the missing puzzle piece: the origin of selectivity in oxazaborolidinium ion-catalysed reactions'


No Thumbnail Available

Type

Dataset

Change log

Authors

Goodman, Jonathan M 

Description

Gaussian 16 density functional theory (DFT) calculation outputs supporting 'Reaction dynamics as the missing puzzle piece: the selectivity in oxazaborolidinium ion-catalysed reactions'

The selectivity in a group of oxazaborolidinium ion-catalyzed reactions between aldehyde and diazo compounds cannot be explained using transition state theory. VRAI-selectivity, developed to predict the outcome of dynamically controlled reactions, can account for both the chemo- and the stereo-selectivity in these reactions, which are controlled by reaction dynamics. Subtle modifications to the substrate or catalyst substituents alter the potential energy surface, leading to changes in predominant reaction pathways and altering the barriers to the major product when reaction dynamics are considered. In addition, this study suggests an explanation for the mysterious inversion of enantioselectivity resulting from the inclusion of an ortho group in the catalyst.

We present key DFT structures from the study in this dataset.

Version

Software / Usage instructions

Density functional theory (DFT) calculations were performed with Gaussian 16. Structural optimizations and frequency calculations were conducted with the B3LYP-D3 functional and the 6-31G(d) basis set. Thorough conformational searches were conducted with MacroModel (V13.4) before the re-optimizations at the DFT level. The OPLS4 force field was employed, along with a mixed torsional/low-mode sampling method, and a maximum of 2000 steps as the limit. Conformers with energies within a window of 41 kJ/mol (equivalent to 10 kcal/mol) were saved for subsequent analysis. Files can be opened and viewed using any text editor.

Keywords

Asymmetric catalysis, Density Functional Thoery, Reaction dynamics

Publisher

Relationships
Supplements: