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Hunting for Organic Molecules with Artificial Intelligence: Molecules Optimized for Desired Excitation Energies.


ABSTRACT: This work presents a proof-of-concept study in artificial-intelligence-assisted (AI-assisted) chemistry where a machine-learning-based molecule generator is coupled with density functional theory (DFT) calculations, synthesis, and measurement. Although deep-learning-based molecule generators have shown promise, it is unclear to what extent they can be useful in real-world materials development. To assess the reliability of AI-assisted chemistry, we prepared a platform using a molecule generator and a DFT simulator, and attempted to generate novel photofunctional molecules whose lowest excited states lie at desired energetic levels. A 10 day run on the 12-core server discovered 86 potential photofunctional molecules around target lowest excitation levels, designated as 200, 300, 400, 500, and 600 nm. Among the molecules discovered, six were synthesized, and five were confirmed to reproduce DFT predictions in ultraviolet visible absorption measurements. This result shows the potential of AI-assisted chemistry to discover ready-to-synthesize novel molecules with modest computational resources.

SUBMITTER: Sumita M 

PROVIDER: S-EPMC6161049 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Hunting for Organic Molecules with Artificial Intelligence: Molecules Optimized for Desired Excitation Energies.

Sumita Masato M   Yang Xiufeng X   Ishihara Shinsuke S   Tamura Ryo R   Tsuda Koji K  

ACS central science 20180820 9


This work presents a proof-of-concept study in artificial-intelligence-assisted (AI-assisted) chemistry where a machine-learning-based molecule generator is coupled with density functional theory (DFT) calculations, synthesis, and measurement. Although deep-learning-based molecule generators have shown promise, it is unclear to what extent they can be useful in real-world materials development. To assess the reliability of AI-assisted chemistry, we prepared a platform using a molecule generator  ...[more]

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