QCDGE database, Quantum Chemistry Database with Ground- and Excited-state Properties of 450 Kilo Molecules
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866916273887117312 |
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| author | Zhu, Yifei Li, Mengge Xu, Chao Lan, Zhenggang |
| author_facet | Zhu, Yifei Li, Mengge Xu, Chao Lan, Zhenggang |
| contents | Due to rapid advancements in deep learning techniques, the demand for large-volume high-quality databases grows significantly in chemical research. We developed a quantum-chemistry database that includes 443,106 small organic molecules with sizes up to 10 heavy atoms including carbon (C), nitrogen (N), oxygen (O), and fluorine (F). Ground-state geometry optimizations and frequency calculations of all compounds were performed at the B3LYP/6-31G* level with the BJD3 dispersion correction, while the excited-state single-point calculations were conducted at the $ω$B97X-D/6-31G* level. Totally twenty seven molecular properties, such as geometric, thermodynamic, electronic and energetic properties, were gathered from these calculations. Meanwhile, we also established a comprehensive protocol for the construction of a high-volume quantum-chemistry database. Our QCDGE (Quantum Chemistry Database with Ground- and Excited-State Properties) database contains a substantial volume of data, exhibits high chemical diversity, and most importantly includes excited-state information. This database, along with its construction protocol, is expected to have a significant impact on the broad applications of machine learning studies across different fields of chemistry, especially in the area of excited-state research. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_02341 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | QCDGE database, Quantum Chemistry Database with Ground- and Excited-state Properties of 450 Kilo Molecules Zhu, Yifei Li, Mengge Xu, Chao Lan, Zhenggang Chemical Physics Due to rapid advancements in deep learning techniques, the demand for large-volume high-quality databases grows significantly in chemical research. We developed a quantum-chemistry database that includes 443,106 small organic molecules with sizes up to 10 heavy atoms including carbon (C), nitrogen (N), oxygen (O), and fluorine (F). Ground-state geometry optimizations and frequency calculations of all compounds were performed at the B3LYP/6-31G* level with the BJD3 dispersion correction, while the excited-state single-point calculations were conducted at the $ω$B97X-D/6-31G* level. Totally twenty seven molecular properties, such as geometric, thermodynamic, electronic and energetic properties, were gathered from these calculations. Meanwhile, we also established a comprehensive protocol for the construction of a high-volume quantum-chemistry database. Our QCDGE (Quantum Chemistry Database with Ground- and Excited-State Properties) database contains a substantial volume of data, exhibits high chemical diversity, and most importantly includes excited-state information. This database, along with its construction protocol, is expected to have a significant impact on the broad applications of machine learning studies across different fields of chemistry, especially in the area of excited-state research. |
| title | QCDGE database, Quantum Chemistry Database with Ground- and Excited-state Properties of 450 Kilo Molecules |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2406.02341 |