---
configs:
- config_name: default
  data_files: "co/*.parquet"
- config_name: info
  data_files: "ds.parquet"
license: cc-by-4.0
tags:
- molecular dynamics
- mlip
- interatomic potential
pretty_name: Vector-QM24 DMC
---
### <details><summary>Cite this dataset </summary>Khan, D., Benali, A., Kim, S. Y. H., Rudorff, G. F., and Lilienfeld, O. A. _Vector-QM24 DMC_. ColabFit, 2025. https://doi.org/None</details>  
#### This dataset has been curated and formatted for the ColabFit Exchange  
#### This dataset is also available on the ColabFit Exchange:  
https://materials.colabfit.org/id/DS_dbso1owsqbwv_0  
#### Visit the ColabFit Exchange to search additional datasets by author, description, element content and more.  
https://materials.colabfit.org
<br><hr>  
# Dataset  Name  
Vector-QM24 DMC  
### Description  
Lowest-energy structures with up to 4 heavy atoms from Vector-QM24 (VQM24) with properties calculated using diffusion quantum Monte Carlo (DMC) after DFT optimization. Vector-QM24 is a quantum chemistry dataset of ~836 thousand small organic and inorganic molecules. Dataset covers all possible neutral closed-shell small organic and inorganic molecules with up to five heavy (p-block) atoms: C, N, O, F, Si, P, S, Cl, Br.  
### Dataset authors  
Danish Khan, Anouar Benali, Scott Y. H. Kim, Guido Falk von Rudorff, O. Anatole von Lilienfeld  
### Publication  
https://doi.org/10.1038/s41597-025-05428-4  
### Original data link  
https://doi.org/10.5281/zenodo.15442257  
### License  
CC-BY-4.0  
### Number of unique molecular configurations  
10780  
### Number of atoms  
79933  
### Elements included  
Br, C, Cl, F, H, N, O, P, S, Si  
### Properties included  
energy  
<br>
<hr>  

# Usage  
- `ds.parquet` : Aggregated dataset information.  
- `co/` directory: Configuration rows each include a structure, calculated properties, and metadata.  
- `cs/` directory : Configuration sets are subsets of configurations grouped by some common characteristic. If `cs/` does not exist, no configurations sets have been defined for this dataset.  
- `cs_co_map/` directory : The mapping of configurations to configuration sets (if defined).  
<br>
#### ColabFit Exchange documentation includes descriptions of content and example code for parsing parquet files:  
- [Parquet parsing: example code](https://materials.colabfit.org/docs/how_to_use_parquet)  
- [Dataset info schema](https://materials.colabfit.org/docs/dataset_schema)  
- [Configuration schema](https://materials.colabfit.org/docs/configuration_schema)  
- [Configuration set schema](https://materials.colabfit.org/docs/configuration_set_schema)  
- [Configuration set to configuration mapping schema](https://materials.colabfit.org/docs/cs_co_mapping_schema)