Accelerating Organic Electronic Materials Design with Low-Cost, Robust Molecular Reorganization Energy Predictions

30 November 2022, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

A critical bottleneck for the design of high-conductivity organic materials is finding molecules with low reorganization energy. The development of low-cost machine-learning-based models for calculating the reorganization energy has proven to be challenging. Here we combine a graph-based neural network recently benchmarked for drug design applications, ChIRo, with low-cost conformational features and show the feasibility of reorganization energy predictions on the benchmark QM9 dataset without needing DFT geometries.

Keywords

Organic Electronic Materials
Virtual Screening Tools
Chemically-Informed Features
Graph Neural Networks

Supplementary materials

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Supporting Information
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Supporting Information includes a description on the contents of raw data files provided at the Github repo, a description of the procedure for the curation of the dataset, the implementation of the machine learning models, and distributions for the number of conformers in the dataset.
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