Reactant Orientation

Overview

Using artificial force induced reaction (AFIR) method, following objectives can be met in an automated manner:

  • Orient the reactant geomtries

  • Predict the unknown reactions between two reactants

  • Search for reaction for bond formation between two atoms in two different molecules

The method involves applying an artificial force between different parts of a molecule or between multiple molecules to induce a reaction and guide it towards a specific product.

Check the Input and Visualizer section for the allowed input types and how to upload the files.

How it works

The reactant orientation compute engine generates a certain number of trial orientations of the input reactant geometries based on the range of the user-provided force parameters. Upon generation, the trial orientation geomtries will undergo geometry optimization either with Hybrid ML or GFN2_XTB as chosen by the user.

Input Fields

Reactant 1 Charge

Total charge of the reactant 1 molecule (e.g., 0)

Reactant 1 Multiplicity

Spin multiplicity = 2S+1 (e.g., 1 for singlet)

Reactant 2 Charge

Total charge of the reactant 2 molecule (e.g., 0)

Reactant 2 Multiplicity

Spin mulitplicity = 2S+1 (e.g., 1 for singlet)

GMIN

Minimum artificial force

GMAX

Maximum artificial force parameter

Orientations

Number of trial orientations to generate and start with

Software

Software for geometry optimization of the trial orientations i.e., Hybrid ML or GFN2-XTB.

Finally, click the Run Reactant Orientation button to start the simulation.

Output Details

The following options are available to explore and save the results of your geometry optimization:

Trial Orientation

Trial orientations are visualized on the left side of the visualizer.

Trial and optimized structure

Figure: Interface of different trial and optimized oriented geometries.

Optimized Orientation

Optimized orientation geometries are visualized on the right half of the visualizer.

Save Results

In the bottom right corner, you can save the “Metadata”.